Home / 155,267.28-232,734.80-80,311.95

Finding the Fourth Proportional to 155,267.28, 232,734.80 and 80,311.95

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Solution

The fourth proportional to 155,267.28, 232,734.80 and 80,311.95 is: 120,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.28 : 232,734.80 = 80,311.95 : x
  2. Step 2: Convert to fraction form
    155,267.28/232,734.80 = 80,311.95/x
  3. Step 3: Cross multiply
    155,267.28x = 232,734.80 × 80,311.95
  4. Step 4: Simplify right side
    155,267.28x = 18,691,385,620.86
  5. Step 5: Solve for x
    x = 18,691,385,620.86/155,267.28
  6. Step 6: Final answer
    x = 120,382.00

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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.