Home / 129,839.03-194,769.70-45,591.95

Finding the Fourth Proportional to 129,839.03, 194,769.70 and 45,591.95

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Solution

The fourth proportional to 129,839.03, 194,769.70 and 45,591.95 is: 68,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.03 : 194,769.70 = 45,591.95 : x
  2. Step 2: Convert to fraction form
    129,839.03/194,769.70 = 45,591.95/x
  3. Step 3: Cross multiply
    129,839.03x = 194,769.70 × 45,591.95
  4. Step 4: Simplify right side
    129,839.03x = 8,879,930,796.86
  5. Step 5: Solve for x
    x = 8,879,930,796.86/129,839.03
  6. Step 6: Final answer
    x = 68,391.84

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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.