Finding the Fourth Proportional to 88.59, 132.84 and 76.62
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Solution
The fourth proportional to 88.59, 132.84 and 76.62 is: 114.89
Step by Step Solution
- Step 1: Write the proportion equation
88.59 : 132.84 = 76.62 : x - Step 2: Convert to fraction form
88.59/132.84 = 76.62/x - Step 3: Cross multiply
88.59x = 132.84 × 76.62 - Step 4: Simplify right side
88.59x = 10,178.20 - Step 5: Solve for x
x = 10,178.20/88.59 - Step 6: Final answer
x = 114.89
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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.