Home / 204,634.12-306,992.80-86,305.88

Finding the Fourth Proportional to 204,634.12, 306,992.80 and 86,305.88

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Solution

The fourth proportional to 204,634.12, 306,992.80 and 86,305.88 is: 129,476.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,634.12 : 306,992.80 = 86,305.88 : x
  2. Step 2: Convert to fraction form
    204,634.12/306,992.80 = 86,305.88/x
  3. Step 3: Cross multiply
    204,634.12x = 306,992.80 × 86,305.88
  4. Step 4: Simplify right side
    204,634.12x = 26,495,283,757.66
  5. Step 5: Solve for x
    x = 26,495,283,757.66/204,634.12
  6. Step 6: Final answer
    x = 129,476.37

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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.