Home / 204,910.96-307,292.50-86,591.44

Finding the Fourth Proportional to 204,910.96, 307,292.50 and 86,591.44

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Solution

The fourth proportional to 204,910.96, 307,292.50 and 86,591.44 is: 129,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,910.96 : 307,292.50 = 86,591.44 : x
  2. Step 2: Convert to fraction form
    204,910.96/307,292.50 = 86,591.44/x
  3. Step 3: Cross multiply
    204,910.96x = 307,292.50 × 86,591.44
  4. Step 4: Simplify right side
    204,910.96x = 26,608,900,076.20
  5. Step 5: Solve for x
    x = 26,608,900,076.20/204,910.96
  6. Step 6: Final answer
    x = 129,855.91

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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.