Home / 132,400.13-198,600.21-38,905.88

Finding the Fourth Proportional to 132,400.13, 198,600.21 and 38,905.88

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Solution

The fourth proportional to 132,400.13, 198,600.21 and 38,905.88 is: 58,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,400.13 : 198,600.21 = 38,905.88 : x
  2. Step 2: Convert to fraction form
    132,400.13/198,600.21 = 38,905.88/x
  3. Step 3: Cross multiply
    132,400.13x = 198,600.21 × 38,905.88
  4. Step 4: Simplify right side
    132,400.13x = 7,726,714,945.23
  5. Step 5: Solve for x
    x = 7,726,714,945.23/132,400.13
  6. Step 6: Final answer
    x = 58,358.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.