Home / 187,436.20-281,168.88-54,318.37

Finding the Fourth Proportional to 187,436.20, 281,168.88 and 54,318.37

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Solution

The fourth proportional to 187,436.20, 281,168.88 and 54,318.37 is: 81,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,436.20 : 281,168.88 = 54,318.37 : x
  2. Step 2: Convert to fraction form
    187,436.20/281,168.88 = 54,318.37/x
  3. Step 3: Cross multiply
    187,436.20x = 281,168.88 × 54,318.37
  4. Step 4: Simplify right side
    187,436.20x = 15,272,635,256.33
  5. Step 5: Solve for x
    x = 15,272,635,256.33/187,436.20
  6. Step 6: Final answer
    x = 81,481.78

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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.