Home / 113,432.43-156,537.18-63,131.43

Finding the Fourth Proportional to 113,432.43, 156,537.18 and 63,131.43

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Solution

The fourth proportional to 113,432.43, 156,537.18 and 63,131.43 is: 87,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,432.43 : 156,537.18 = 63,131.43 : x
  2. Step 2: Convert to fraction form
    113,432.43/156,537.18 = 63,131.43/x
  3. Step 3: Cross multiply
    113,432.43x = 156,537.18 × 63,131.43
  4. Step 4: Simplify right side
    113,432.43x = 9,882,416,021.57
  5. Step 5: Solve for x
    x = 9,882,416,021.57/113,432.43
  6. Step 6: Final answer
    x = 87,121.61

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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.