Finding the Fourth Proportional to 87.93, 132.08 and 70.92
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Solution
The fourth proportional to 87.93, 132.08 and 70.92 is: 106.53
Step by Step Solution
- Step 1: Write the proportion equation
87.93 : 132.08 = 70.92 : x - Step 2: Convert to fraction form
87.93/132.08 = 70.92/x - Step 3: Cross multiply
87.93x = 132.08 × 70.92 - Step 4: Simplify right side
87.93x = 9,366.76 - Step 5: Solve for x
x = 9,366.76/87.93 - Step 6: Final answer
x = 106.53
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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.