Home / 120,621.60-180,932.87-50,451.69

Finding the Fourth Proportional to 120,621.60, 180,932.87 and 50,451.69

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Solution

The fourth proportional to 120,621.60, 180,932.87 and 50,451.69 is: 75,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.60 : 180,932.87 = 50,451.69 : x
  2. Step 2: Convert to fraction form
    120,621.60/180,932.87 = 50,451.69/x
  3. Step 3: Cross multiply
    120,621.60x = 180,932.87 × 50,451.69
  4. Step 4: Simplify right side
    120,621.60x = 9,128,368,815.79
  5. Step 5: Solve for x
    x = 9,128,368,815.79/120,621.60
  6. Step 6: Final answer
    x = 75,677.73

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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.