Home / 113,452.13-156,563.94-65,720.85

Finding the Fourth Proportional to 113,452.13, 156,563.94 and 65,720.85

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Solution

The fourth proportional to 113,452.13, 156,563.94 and 65,720.85 is: 90,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,452.13 : 156,563.94 = 65,720.85 : x
  2. Step 2: Convert to fraction form
    113,452.13/156,563.94 = 65,720.85/x
  3. Step 3: Cross multiply
    113,452.13x = 156,563.94 × 65,720.85
  4. Step 4: Simplify right side
    113,452.13x = 10,289,515,216.15
  5. Step 5: Solve for x
    x = 10,289,515,216.15/113,452.13
  6. Step 6: Final answer
    x = 90,694.78

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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.