Home / 154,816.20-231,932.70-79,680.60

Finding the Fourth Proportional to 154,816.20, 231,932.70 and 79,680.60

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Solution

The fourth proportional to 154,816.20, 231,932.70 and 79,680.60 is: 119,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,816.20 : 231,932.70 = 79,680.60 : x
  2. Step 2: Convert to fraction form
    154,816.20/231,932.70 = 79,680.60/x
  3. Step 3: Cross multiply
    154,816.20x = 231,932.70 × 79,680.60
  4. Step 4: Simplify right side
    154,816.20x = 18,480,536,695.62
  5. Step 5: Solve for x
    x = 18,480,536,695.62/154,816.20
  6. Step 6: Final answer
    x = 119,370.82

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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.