Home / 113,397.24-156,507.38-65,679.60

Finding the Fourth Proportional to 113,397.24, 156,507.38 and 65,679.60

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Solution

The fourth proportional to 113,397.24, 156,507.38 and 65,679.60 is: 90,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,397.24 : 156,507.38 = 65,679.60 : x
  2. Step 2: Convert to fraction form
    113,397.24/156,507.38 = 65,679.60/x
  3. Step 3: Cross multiply
    113,397.24x = 156,507.38 × 65,679.60
  4. Step 4: Simplify right side
    113,397.24x = 10,279,342,115.45
  5. Step 5: Solve for x
    x = 10,279,342,115.45/113,397.24
  6. Step 6: Final answer
    x = 90,648.96

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1.5x scale

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.