Home / 187,422.50-281,134.02-76,614.50

Finding the Fourth Proportional to 187,422.50, 281,134.02 and 76,614.50

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Solution

The fourth proportional to 187,422.50, 281,134.02 and 76,614.50 is: 114,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,422.50 : 281,134.02 = 76,614.50 : x
  2. Step 2: Convert to fraction form
    187,422.50/281,134.02 = 76,614.50/x
  3. Step 3: Cross multiply
    187,422.50x = 281,134.02 × 76,614.50
  4. Step 4: Simplify right side
    187,422.50x = 21,538,942,375.29
  5. Step 5: Solve for x
    x = 21,538,942,375.29/187,422.50
  6. Step 6: Final answer
    x = 114,921.86

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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.