Home / 132,390.56-198,587.46-38,898.20

Finding the Fourth Proportional to 132,390.56, 198,587.46 and 38,898.20

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Solution

The fourth proportional to 132,390.56, 198,587.46 and 38,898.20 is: 58,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,390.56 : 198,587.46 = 38,898.20 : x
  2. Step 2: Convert to fraction form
    132,390.56/198,587.46 = 38,898.20/x
  3. Step 3: Cross multiply
    132,390.56x = 198,587.46 × 38,898.20
  4. Step 4: Simplify right side
    132,390.56x = 7,724,694,736.57
  5. Step 5: Solve for x
    x = 7,724,694,736.57/132,390.56
  6. Step 6: Final answer
    x = 58,347.78

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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.