Home / 154,770.52-231,844.72-80,743

Finding the Fourth Proportional to 154,770.52, 231,844.72 and 80,743

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Solution

The fourth proportional to 154,770.52, 231,844.72 and 80,743 is: 120,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,770.52 : 231,844.72 = 80,743 : x
  2. Step 2: Convert to fraction form
    154,770.52/231,844.72 = 80,743/x
  3. Step 3: Cross multiply
    154,770.52x = 231,844.72 × 80,743
  4. Step 4: Simplify right side
    154,770.52x = 18,719,838,226.96
  5. Step 5: Solve for x
    x = 18,719,838,226.96/154,770.52
  6. Step 6: Final answer
    x = 120,952.22

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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.