Home / 124,979.24-172,291.92-89,107

Finding the Fourth Proportional to 124,979.24, 172,291.92 and 89,107

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Solution

The fourth proportional to 124,979.24, 172,291.92 and 89,107 is: 122,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,979.24 : 172,291.92 = 89,107 : x
  2. Step 2: Convert to fraction form
    124,979.24/172,291.92 = 89,107/x
  3. Step 3: Cross multiply
    124,979.24x = 172,291.92 × 89,107
  4. Step 4: Simplify right side
    124,979.24x = 15,352,416,115.44
  5. Step 5: Solve for x
    x = 15,352,416,115.44/124,979.24
  6. Step 6: Final answer
    x = 122,839.73

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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.