Finding the Fourth Proportional to 125,228.92, 172,833.64 and 77,497.68
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Solution
The fourth proportional to 125,228.92, 172,833.64 and 77,497.68 is: 106,957.77
Step by Step Solution
- Step 1: Write the proportion equation
125,228.92 : 172,833.64 = 77,497.68 : x - Step 2: Convert to fraction form
125,228.92/172,833.64 = 77,497.68/x - Step 3: Cross multiply
125,228.92x = 172,833.64 × 77,497.68 - Step 4: Simplify right side
125,228.92x = 13,394,206,125.96 - Step 5: Solve for x
x = 13,394,206,125.96/125,228.92 - Step 6: Final answer
x = 106,957.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.