Finding the Fourth Proportional to 145.99, 201.44 and 87.02
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Solution
The fourth proportional to 145.99, 201.44 and 87.02 is: 120.07
Step by Step Solution
- Step 1: Write the proportion equation
145.99 : 201.44 = 87.02 : x - Step 2: Convert to fraction form
145.99/201.44 = 87.02/x - Step 3: Cross multiply
145.99x = 201.44 × 87.02 - Step 4: Simplify right side
145.99x = 17,528.87 - Step 5: Solve for x
x = 17,528.87/145.99 - Step 6: Final answer
x = 120.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.