Home / 120,632.28-180,920.88-45,760.74

Finding the Fourth Proportional to 120,632.28, 180,920.88 and 45,760.74

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Solution

The fourth proportional to 120,632.28, 180,920.88 and 45,760.74 is: 68,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,632.28 : 180,920.88 = 45,760.74 : x
  2. Step 2: Convert to fraction form
    120,632.28/180,920.88 = 45,760.74/x
  3. Step 3: Cross multiply
    120,632.28x = 180,920.88 × 45,760.74
  4. Step 4: Simplify right side
    120,632.28x = 8,279,073,350.25
  5. Step 5: Solve for x
    x = 8,279,073,350.25/120,632.28
  6. Step 6: Final answer
    x = 68,630.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.