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Finding the Fourth Proportional to 187,620.64, 281,439.16 and 61,259.90

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Solution

The fourth proportional to 187,620.64, 281,439.16 and 61,259.90 is: 91,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,620.64 : 281,439.16 = 61,259.90 : x
  2. Step 2: Convert to fraction form
    187,620.64/281,439.16 = 61,259.90/x
  3. Step 3: Cross multiply
    187,620.64x = 281,439.16 × 61,259.90
  4. Step 4: Simplify right side
    187,620.64x = 17,240,933,237.34
  5. Step 5: Solve for x
    x = 17,240,933,237.34/187,620.64
  6. Step 6: Final answer
    x = 91,892.52

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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.