Home / 132,291.92-198,438.96-38,799.20

Finding the Fourth Proportional to 132,291.92, 198,438.96 and 38,799.20

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Solution

The fourth proportional to 132,291.92, 198,438.96 and 38,799.20 is: 58,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,291.92 : 198,438.96 = 38,799.20 : x
  2. Step 2: Convert to fraction form
    132,291.92/198,438.96 = 38,799.20/x
  3. Step 3: Cross multiply
    132,291.92x = 198,438.96 × 38,799.20
  4. Step 4: Simplify right side
    132,291.92x = 7,699,272,896.83
  5. Step 5: Solve for x
    x = 7,699,272,896.83/132,291.92
  6. Step 6: Final answer
    x = 58,199.12

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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.