Home / 204,581.25-306,871.23-92,129.79

Finding the Fourth Proportional to 204,581.25, 306,871.23 and 92,129.79

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Solution

The fourth proportional to 204,581.25, 306,871.23 and 92,129.79 is: 138,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,581.25 : 306,871.23 = 92,129.79 : x
  2. Step 2: Convert to fraction form
    204,581.25/306,871.23 = 92,129.79/x
  3. Step 3: Cross multiply
    204,581.25x = 306,871.23 × 92,129.79
  4. Step 4: Simplify right side
    204,581.25x = 28,271,981,976.94
  5. Step 5: Solve for x
    x = 28,271,981,976.94/204,581.25
  6. Step 6: Final answer
    x = 138,194.39

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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.