Finding the Fourth Proportional to 88.62, 132.75 and 66.99
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Solution
The fourth proportional to 88.62, 132.75 and 66.99 is: 100.35
Step by Step Solution
- Step 1: Write the proportion equation
88.62 : 132.75 = 66.99 : x - Step 2: Convert to fraction form
88.62/132.75 = 66.99/x - Step 3: Cross multiply
88.62x = 132.75 × 66.99 - Step 4: Simplify right side
88.62x = 8,892.92 - Step 5: Solve for x
x = 8,892.92/88.62 - Step 6: Final answer
x = 100.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.