Home / 172,375.20-258,601.68-71,170.56

Finding the Fourth Proportional to 172,375.20, 258,601.68 and 71,170.56

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Solution

The fourth proportional to 172,375.20, 258,601.68 and 71,170.56 is: 106,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,375.20 : 258,601.68 = 71,170.56 : x
  2. Step 2: Convert to fraction form
    172,375.20/258,601.68 = 71,170.56/x
  3. Step 3: Cross multiply
    172,375.20x = 258,601.68 × 71,170.56
  4. Step 4: Simplify right side
    172,375.20x = 18,404,826,382.54
  5. Step 5: Solve for x
    x = 18,404,826,382.54/172,375.20
  6. Step 6: Final answer
    x = 106,771.89

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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.