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Finding the Fourth Proportional to 181,691.80, 250,732.86 and 101,118.04

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Solution

The fourth proportional to 181,691.80, 250,732.86 and 101,118.04 is: 139,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,691.80 : 250,732.86 = 101,118.04 : x
  2. Step 2: Convert to fraction form
    181,691.80/250,732.86 = 101,118.04/x
  3. Step 3: Cross multiply
    181,691.80x = 250,732.86 × 101,118.04
  4. Step 4: Simplify right side
    181,691.80x = 25,353,615,366.79
  5. Step 5: Solve for x
    x = 25,353,615,366.79/181,691.80
  6. Step 6: Final answer
    x = 139,541.88

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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.