Finding the Fourth Proportional to 125,889.60, 188,717.76 and 63,487.68
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Solution
The fourth proportional to 125,889.60, 188,717.76 and 63,487.68 is: 95,172.70
Step by Step Solution
- Step 1: Write the proportion equation
125,889.60 : 188,717.76 = 63,487.68 : x - Step 2: Convert to fraction form
125,889.60/188,717.76 = 63,487.68/x - Step 3: Cross multiply
125,889.60x = 188,717.76 × 63,487.68 - Step 4: Simplify right side
125,889.60x = 11,981,252,757.20 - Step 5: Solve for x
x = 11,981,252,757.20/125,889.60 - Step 6: Final answer
x = 95,172.70
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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.