The attractive force decreases with the distance in the same proportion as light, which, we saw a little while ago, decreases in intensity as the square of the distance increases.

引力随距离减少的程度，跟光线随距离减弱有相同的规律，这个规律我们不久前刚刚讲过，即强度的减弱跟距离的平方成正比。

youdao

Its proportional to the masses of the two objects Inversely proportion to the square of distance between them.

引力大小与两物体间的质量乘积成正比，与距离的平方成反比。

youdao

With increasing distance from the river, the proportion of young trees gradually dwindles.

以后随着离河道距离的增加，幼龄胡杨所占比例逐渐减小。

youdao

For the long distance operators the proportion of passengers who were very or fairly satisfied overall was 89% - this figure was 86% in autumn 2011.

BBC: UK

International Data Corp. also predicts that the proportion of four-year colleges offering a distance learning program will grow from 62 percent to 84 percent by 2002.

CNN: fyi.com - Study: Public higher education embracing virtual classrooms