Finding the Fourth Proportional to 88.36, 132.26 and 63.90
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Solution
The fourth proportional to 88.36, 132.26 and 63.90 is: 95.65
Step by Step Solution
- Step 1: Write the proportion equation
88.36 : 132.26 = 63.90 : x - Step 2: Convert to fraction form
88.36/132.26 = 63.90/x - Step 3: Cross multiply
88.36x = 132.26 × 63.90 - Step 4: Simplify right side
88.36x = 8,451.09 - Step 5: Solve for x
x = 8,451.09/88.36 - Step 6: Final answer
x = 95.65
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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.