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Finding the Fourth Proportional to 125,104.65, 172,582.47 and 88,805.92

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Solution

The fourth proportional to 125,104.65, 172,582.47 and 88,805.92 is: 122,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,104.65 : 172,582.47 = 88,805.92 : x
  2. Step 2: Convert to fraction form
    125,104.65/172,582.47 = 88,805.92/x
  3. Step 3: Cross multiply
    125,104.65x = 172,582.47 × 88,805.92
  4. Step 4: Simplify right side
    125,104.65x = 15,326,345,166.13
  5. Step 5: Solve for x
    x = 15,326,345,166.13/125,104.65
  6. Step 6: Final answer
    x = 122,508.20

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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.