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Finding the Fourth Proportional to 187,599.56, 258,893.90 and 102,717.20

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Solution

The fourth proportional to 187,599.56, 258,893.90 and 102,717.20 is: 141,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,599.56 : 258,893.90 = 102,717.20 : x
  2. Step 2: Convert to fraction form
    187,599.56/258,893.90 = 102,717.20/x
  3. Step 3: Cross multiply
    187,599.56x = 258,893.90 × 102,717.20
  4. Step 4: Simplify right side
    187,599.56x = 26,592,856,505.08
  5. Step 5: Solve for x
    x = 26,592,856,505.08/187,599.56
  6. Step 6: Final answer
    x = 141,753.30

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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.