Home / 172,440.46-258,691.60-71,238.50

Finding the Fourth Proportional to 172,440.46, 258,691.60 and 71,238.50

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Solution

The fourth proportional to 172,440.46, 258,691.60 and 71,238.50 is: 106,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440.46 : 258,691.60 = 71,238.50 : x
  2. Step 2: Convert to fraction form
    172,440.46/258,691.60 = 71,238.50/x
  3. Step 3: Cross multiply
    172,440.46x = 258,691.60 × 71,238.50
  4. Step 4: Simplify right side
    172,440.46x = 18,428,801,546.60
  5. Step 5: Solve for x
    x = 18,428,801,546.60/172,440.46
  6. Step 6: Final answer
    x = 106,870.52

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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.