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Finding the Fourth Proportional to 131,179.64, 181,027.88 and 74,591.02

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Solution

The fourth proportional to 131,179.64, 181,027.88 and 74,591.02 is: 102,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,179.64 : 181,027.88 = 74,591.02 : x
  2. Step 2: Convert to fraction form
    131,179.64/181,027.88 = 74,591.02/x
  3. Step 3: Cross multiply
    131,179.64x = 181,027.88 × 74,591.02
  4. Step 4: Simplify right side
    131,179.64x = 13,503,053,951.55
  5. Step 5: Solve for x
    x = 13,503,053,951.55/131,179.64
  6. Step 6: Final answer
    x = 102,935.59

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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.