Home / 154,819.20-231,883.20-127,171.20

Finding the Fourth Proportional to 154,819.20, 231,883.20 and 127,171.20

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Solution

The fourth proportional to 154,819.20, 231,883.20 and 127,171.20 is: 190,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,819.20 : 231,883.20 = 127,171.20 : x
  2. Step 2: Convert to fraction form
    154,819.20/231,883.20 = 127,171.20/x
  3. Step 3: Cross multiply
    154,819.20x = 231,883.20 × 127,171.20
  4. Step 4: Simplify right side
    154,819.20x = 29,488,864,803.84
  5. Step 5: Solve for x
    x = 29,488,864,803.84/154,819.20
  6. Step 6: Final answer
    x = 190,472.92

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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.