Home / 259,752.20-389,438.22-82,159.88

Finding the Fourth Proportional to 259,752.20, 389,438.22 and 82,159.88

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Solution

The fourth proportional to 259,752.20, 389,438.22 and 82,159.88 is: 123,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,752.20 : 389,438.22 = 82,159.88 : x
  2. Step 2: Convert to fraction form
    259,752.20/389,438.22 = 82,159.88/x
  3. Step 3: Cross multiply
    259,752.20x = 389,438.22 × 82,159.88
  4. Step 4: Simplify right side
    259,752.20x = 31,996,197,422.61
  5. Step 5: Solve for x
    x = 31,996,197,422.61/259,752.20
  6. Step 6: Final answer
    x = 123,179.70

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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.