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Finding the Fourth Proportional to 171,956.60, 258,129.30 and 132,687.80

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Solution

The fourth proportional to 171,956.60, 258,129.30 and 132,687.80 is: 199,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,956.60 : 258,129.30 = 132,687.80 : x
  2. Step 2: Convert to fraction form
    171,956.60/258,129.30 = 132,687.80/x
  3. Step 3: Cross multiply
    171,956.60x = 258,129.30 × 132,687.80
  4. Step 4: Simplify right side
    171,956.60x = 34,250,608,932.54
  5. Step 5: Solve for x
    x = 34,250,608,932.54/171,956.60
  6. Step 6: Final answer
    x = 199,181.71

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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.