Home / 187,729.76-281,592.48-75,438.56

Finding the Fourth Proportional to 187,729.76, 281,592.48 and 75,438.56

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Solution

The fourth proportional to 187,729.76, 281,592.48 and 75,438.56 is: 113,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,729.76 : 281,592.48 = 75,438.56 : x
  2. Step 2: Convert to fraction form
    187,729.76/281,592.48 = 75,438.56/x
  3. Step 3: Cross multiply
    187,729.76x = 281,592.48 × 75,438.56
  4. Step 4: Simplify right side
    187,729.76x = 21,242,931,198.03
  5. Step 5: Solve for x
    x = 21,242,931,198.03/187,729.76
  6. Step 6: Final answer
    x = 113,156.97

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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.