Finding the Fourth Proportional to 103,898.97, 155,657.70 and 92,691.81
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Solution
The fourth proportional to 103,898.97, 155,657.70 and 92,691.81 is: 138,867.54
Step by Step Solution
- Step 1: Write the proportion equation
103,898.97 : 155,657.70 = 92,691.81 : x - Step 2: Convert to fraction form
103,898.97/155,657.70 = 92,691.81/x - Step 3: Cross multiply
103,898.97x = 155,657.70 × 92,691.81 - Step 4: Simplify right side
103,898.97x = 14,428,193,953.44 - Step 5: Solve for x
x = 14,428,193,953.44/103,898.97 - Step 6: Final answer
x = 138,867.54
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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.