Home / 207,229.20-311,007.83-80,929.95

Finding the Fourth Proportional to 207,229.20, 311,007.83 and 80,929.95

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Solution

The fourth proportional to 207,229.20, 311,007.83 and 80,929.95 is: 121,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,229.20 : 311,007.83 = 80,929.95 : x
  2. Step 2: Convert to fraction form
    207,229.20/311,007.83 = 80,929.95/x
  3. Step 3: Cross multiply
    207,229.20x = 311,007.83 × 80,929.95
  4. Step 4: Simplify right side
    207,229.20x = 25,169,847,726.86
  5. Step 5: Solve for x
    x = 25,169,847,726.86/207,229.20
  6. Step 6: Final answer
    x = 121,458.98

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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.