# Inversely Proportional Quantities

## Inversely Proportional Quantities

Two quantities are said to be inversely proportional if their measurements evolve in opposite direction.
In other words, two quantities are inversely proportional if the product of their quantities is a constant number.

### Example

To travel a certain given distance $$d$$, the speed $$v$$ and the time $$t$$ are two inversely proportional quantities connected in the relationship $$d = vt$$. The faster the vehicle goes, the less time it will take to travel the same distance. Therefore, the quantities $$v$$ and $$t$$ vary in opposite directions.