Home / 126,247.92-174,310.20-78,522.72

Finding the Fourth Proportional to 126,247.92, 174,310.20 and 78,522.72

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Solution

The fourth proportional to 126,247.92, 174,310.20 and 78,522.72 is: 108,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,247.92 : 174,310.20 = 78,522.72 : x
  2. Step 2: Convert to fraction form
    126,247.92/174,310.20 = 78,522.72/x
  3. Step 3: Cross multiply
    126,247.92x = 174,310.20 × 78,522.72
  4. Step 4: Simplify right side
    126,247.92x = 13,687,311,027.74
  5. Step 5: Solve for x
    x = 13,687,311,027.74/126,247.92
  6. Step 6: Final answer
    x = 108,416.13

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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.