Home / 129,273.90-193,910.49-40,527.78

Finding the Fourth Proportional to 129,273.90, 193,910.49 and 40,527.78

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Solution

The fourth proportional to 129,273.90, 193,910.49 and 40,527.78 is: 60,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,273.90 : 193,910.49 = 40,527.78 : x
  2. Step 2: Convert to fraction form
    129,273.90/193,910.49 = 40,527.78/x
  3. Step 3: Cross multiply
    129,273.90x = 193,910.49 × 40,527.78
  4. Step 4: Simplify right side
    129,273.90x = 7,858,761,678.41
  5. Step 5: Solve for x
    x = 7,858,761,678.41/129,273.90
  6. Step 6: Final answer
    x = 60,791.56

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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.