To solve this problem Let X be pounds of rose petals needed. ATQ 0.875 pounds of rose petals are in 1 bottle. So, 0.875 / 1 = X / 86 ( because we have to find how many petals {in pounds}are there in 86 perfume bottles ) cross muliplying both side. 0.875 * 86 = X 75.25 = X So, there are 75.25 pounds of petals in 86 perfume bottles.