Home / 132,067.20-198,538.20-112,821.60

Finding the Fourth Proportional to 132,067.20, 198,538.20 and 112,821.60

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Solution

The fourth proportional to 132,067.20, 198,538.20 and 112,821.60 is: 169,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,067.20 : 198,538.20 = 112,821.60 : x
  2. Step 2: Convert to fraction form
    132,067.20/198,538.20 = 112,821.60/x
  3. Step 3: Cross multiply
    132,067.20x = 198,538.20 × 112,821.60
  4. Step 4: Simplify right side
    132,067.20x = 22,399,397,385.12
  5. Step 5: Solve for x
    x = 22,399,397,385.12/132,067.20
  6. Step 6: Final answer
    x = 169,606.06

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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.