Answer :
The amount of medicine required by a patient weighing 130 pounds is 186 milligrams of medicine.
What is a ratio?
A ratio is a comparison of two or more numbers that indicates their sizes and amount in relation to each other.
We have,
Patients weighing 195 pounds require 279 milligrams of medicine.
We can write this in ratio as:
= 279 / 195
Now,
We need to have both patients in proportion.
Proportion means their ratios must be equal.
Let the amount of medicine required for the second patient be M.
We have,
279 / 195 = M / 130
We will find M.
(279 x 130) / 195 = M
M = 186
Thus the amount of medicine required by a patient weighing 130 pounds is 186 milligrams of medicine.
Learn more about ratios here:
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