Home / 90,909.56-125,452.86-88,226.84

Finding the Fourth Proportional to 90,909.56, 125,452.86 and 88,226.84

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Solution

The fourth proportional to 90,909.56, 125,452.86 and 88,226.84 is: 121,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,909.56 : 125,452.86 = 88,226.84 : x
  2. Step 2: Convert to fraction form
    90,909.56/125,452.86 = 88,226.84/x
  3. Step 3: Cross multiply
    90,909.56x = 125,452.86 × 88,226.84
  4. Step 4: Simplify right side
    90,909.56x = 11,068,309,406.76
  5. Step 5: Solve for x
    x = 11,068,309,406.76/90,909.56
  6. Step 6: Final answer
    x = 121,750.78

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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.