Home / 129,687.36-194,618.52-50,791.74

Finding the Fourth Proportional to 129,687.36, 194,618.52 and 50,791.74

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Solution

The fourth proportional to 129,687.36, 194,618.52 and 50,791.74 is: 76,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,687.36 : 194,618.52 = 50,791.74 : x
  2. Step 2: Convert to fraction form
    129,687.36/194,618.52 = 50,791.74/x
  3. Step 3: Cross multiply
    129,687.36x = 194,618.52 × 50,791.74
  4. Step 4: Simplify right side
    129,687.36x = 9,885,013,267.02
  5. Step 5: Solve for x
    x = 9,885,013,267.02/129,687.36
  6. Step 6: Final answer
    x = 76,221.87

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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.