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Finding the Fourth Proportional to 187,387.76, 281,101.34 and 61,037.86

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Solution

The fourth proportional to 187,387.76, 281,101.34 and 61,037.86 is: 91,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,387.76 : 281,101.34 = 61,037.86 : x
  2. Step 2: Convert to fraction form
    187,387.76/281,101.34 = 61,037.86/x
  3. Step 3: Cross multiply
    187,387.76x = 281,101.34 × 61,037.86
  4. Step 4: Simplify right side
    187,387.76x = 17,157,824,236.73
  5. Step 5: Solve for x
    x = 17,157,824,236.73/187,387.76
  6. Step 6: Final answer
    x = 91,563.21

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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.