Home / 113,591.08-156,761.22-65,835.88

Finding the Fourth Proportional to 113,591.08, 156,761.22 and 65,835.88

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Solution

The fourth proportional to 113,591.08, 156,761.22 and 65,835.88 is: 90,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,591.08 : 156,761.22 = 65,835.88 : x
  2. Step 2: Convert to fraction form
    113,591.08/156,761.22 = 65,835.88/x
  3. Step 3: Cross multiply
    113,591.08x = 156,761.22 × 65,835.88
  4. Step 4: Simplify right side
    113,591.08x = 10,320,512,868.57
  5. Step 5: Solve for x
    x = 10,320,512,868.57/113,591.08
  6. Step 6: Final answer
    x = 90,856.72

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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.