Home / 204,625.20-306,979.64-86,296.64

Finding the Fourth Proportional to 204,625.20, 306,979.64 and 86,296.64

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Solution

The fourth proportional to 204,625.20, 306,979.64 and 86,296.64 is: 129,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,625.20 : 306,979.64 = 86,296.64 : x
  2. Step 2: Convert to fraction form
    204,625.20/306,979.64 = 86,296.64/x
  3. Step 3: Cross multiply
    204,625.20x = 306,979.64 × 86,296.64
  4. Step 4: Simplify right side
    204,625.20x = 26,491,311,480.41
  5. Step 5: Solve for x
    x = 26,491,311,480.41/204,625.20
  6. Step 6: Final answer
    x = 129,462.61

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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.