Finding the Fourth Proportional to 110.70, 166.14 and 84.92
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Solution
The fourth proportional to 110.70, 166.14 and 84.92 is: 127.45
Step by Step Solution
- Step 1: Write the proportion equation
110.70 : 166.14 = 84.92 : x - Step 2: Convert to fraction form
110.70/166.14 = 84.92/x - Step 3: Cross multiply
110.70x = 166.14 × 84.92 - Step 4: Simplify right side
110.70x = 14,108.61 - Step 5: Solve for x
x = 14,108.61/110.70 - Step 6: Final answer
x = 127.45
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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.