A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing

119
pounds requires
136
milligrams of medicine. What is the weight of a patient who requires
200
milligrams of medicine?

2 answers

119/136 = x/200

Cross multiply and solve for x.
A chemist is using 362 milliters of a solution of acid and water.if 15.3% of the solution is acid ,how many milliters of acid are there?