Home / 132,640.72-198,975.30-56,747.14

Finding the Fourth Proportional to 132,640.72, 198,975.30 and 56,747.14

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Solution

The fourth proportional to 132,640.72, 198,975.30 and 56,747.14 is: 85,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.72 : 198,975.30 = 56,747.14 : x
  2. Step 2: Convert to fraction form
    132,640.72/198,975.30 = 56,747.14/x
  3. Step 3: Cross multiply
    132,640.72x = 198,975.30 × 56,747.14
  4. Step 4: Simplify right side
    132,640.72x = 11,291,279,205.64
  5. Step 5: Solve for x
    x = 11,291,279,205.64/132,640.72
  6. Step 6: Final answer
    x = 85,126.79

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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.