Home / 204,371.20-306,395.52-86,060.80

Finding the Fourth Proportional to 204,371.20, 306,395.52 and 86,060.80

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Solution

The fourth proportional to 204,371.20, 306,395.52 and 86,060.80 is: 129,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,371.20 : 306,395.52 = 86,060.80 : x
  2. Step 2: Convert to fraction form
    204,371.20/306,395.52 = 86,060.80/x
  3. Step 3: Cross multiply
    204,371.20x = 306,395.52 × 86,060.80
  4. Step 4: Simplify right side
    204,371.20x = 26,368,643,567.62
  5. Step 5: Solve for x
    x = 26,368,643,567.62/204,371.20
  6. Step 6: Final answer
    x = 129,023.28

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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.