Home / 129,793.08-179,099.20-75,332.68

Finding the Fourth Proportional to 129,793.08, 179,099.20 and 75,332.68

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Solution

The fourth proportional to 129,793.08, 179,099.20 and 75,332.68 is: 103,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793.08 : 179,099.20 = 75,332.68 : x
  2. Step 2: Convert to fraction form
    129,793.08/179,099.20 = 75,332.68/x
  3. Step 3: Cross multiply
    129,793.08x = 179,099.20 × 75,332.68
  4. Step 4: Simplify right side
    129,793.08x = 13,492,023,375.71
  5. Step 5: Solve for x
    x = 13,492,023,375.71/129,793.08
  6. Step 6: Final answer
    x = 103,950.25

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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.