Home / 129,456.38-194,184.57-74,013.50

Finding the Fourth Proportional to 129,456.38, 194,184.57 and 74,013.50

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Solution

The fourth proportional to 129,456.38, 194,184.57 and 74,013.50 is: 111,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,456.38 : 194,184.57 = 74,013.50 : x
  2. Step 2: Convert to fraction form
    129,456.38/194,184.57 = 74,013.50/x
  3. Step 3: Cross multiply
    129,456.38x = 194,184.57 × 74,013.50
  4. Step 4: Simplify right side
    129,456.38x = 14,372,279,671.70
  5. Step 5: Solve for x
    x = 14,372,279,671.70/129,456.38
  6. Step 6: Final answer
    x = 111,020.25

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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.