114.problems #105 and #113 describe proportional rela-
tionships, in which one quantity can be expressed as a fixed
constant time another quantity. this constant is called a proportionality constant.
(a) show that the volume and time in #105 are proportional by expressing the volume as a constant multiplied by the time;
(b) show that the distance and time in #113 are proportional by finding a proportionality constant.

you can find 105 and 113 on the philips exeter academy worksheet