Home / 187,469.20-281,202.45-75,147.78

Finding the Fourth Proportional to 187,469.20, 281,202.45 and 75,147.78

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Solution

The fourth proportional to 187,469.20, 281,202.45 and 75,147.78 is: 112,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,469.20 : 281,202.45 = 75,147.78 : x
  2. Step 2: Convert to fraction form
    187,469.20/281,202.45 = 75,147.78/x
  3. Step 3: Cross multiply
    187,469.20x = 281,202.45 × 75,147.78
  4. Step 4: Simplify right side
    187,469.20x = 21,131,741,043.47
  5. Step 5: Solve for x
    x = 21,131,741,043.47/187,469.20
  6. Step 6: Final answer
    x = 112,721.13

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1.5x scale

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.