Home / 132,221.12-198,370.56-53,294.72

Finding the Fourth Proportional to 132,221.12, 198,370.56 and 53,294.72

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Solution

The fourth proportional to 132,221.12, 198,370.56 and 53,294.72 is: 79,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,221.12 : 198,370.56 = 53,294.72 : x
  2. Step 2: Convert to fraction form
    132,221.12/198,370.56 = 53,294.72/x
  3. Step 3: Cross multiply
    132,221.12x = 198,370.56 × 53,294.72
  4. Step 4: Simplify right side
    132,221.12x = 10,572,103,451.44
  5. Step 5: Solve for x
    x = 10,572,103,451.44/132,221.12
  6. Step 6: Final answer
    x = 79,957.75

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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.