Home / 187,839.60-259,318.44-127,731.12

Finding the Fourth Proportional to 187,839.60, 259,318.44 and 127,731.12

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Solution

The fourth proportional to 187,839.60, 259,318.44 and 127,731.12 is: 176,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.60 : 259,318.44 = 127,731.12 : x
  2. Step 2: Convert to fraction form
    187,839.60/259,318.44 = 127,731.12/x
  3. Step 3: Cross multiply
    187,839.60x = 259,318.44 × 127,731.12
  4. Step 4: Simplify right side
    187,839.60x = 33,123,034,777.85
  5. Step 5: Solve for x
    x = 33,123,034,777.85/187,839.60
  6. Step 6: Final answer
    x = 176,336.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.