Finding the Fourth Proportional to 125,891.60, 188,720.76 and 63,489.68
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Solution
The fourth proportional to 125,891.60, 188,720.76 and 63,489.68 is: 95,175.70
Step by Step Solution
- Step 1: Write the proportion equation
125,891.60 : 188,720.76 = 63,489.68 : x - Step 2: Convert to fraction form
125,891.60/188,720.76 = 63,489.68/x - Step 3: Cross multiply
125,891.60x = 188,720.76 × 63,489.68 - Step 4: Simplify right side
125,891.60x = 11,981,820,661.76 - Step 5: Solve for x
x = 11,981,820,661.76/125,891.60 - Step 6: Final answer
x = 95,175.70
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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.