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Finding the Fourth Proportional to 181,429.80, 250,371.78 and 100,864.68

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Solution

The fourth proportional to 181,429.80, 250,371.78 and 100,864.68 is: 139,192.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,429.80 : 250,371.78 = 100,864.68 : x
  2. Step 2: Convert to fraction form
    181,429.80/250,371.78 = 100,864.68/x
  3. Step 3: Cross multiply
    181,429.80x = 250,371.78 × 100,864.68
  4. Step 4: Simplify right side
    181,429.80x = 25,253,669,470.73
  5. Step 5: Solve for x
    x = 25,253,669,470.73/181,429.80
  6. Step 6: Final answer
    x = 139,192.51

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1.5x scale

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.