Home / 204,255.96-306,387.54-71,138.70

Finding the Fourth Proportional to 204,255.96, 306,387.54 and 71,138.70

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Solution

The fourth proportional to 204,255.96, 306,387.54 and 71,138.70 is: 106,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,255.96 : 306,387.54 = 71,138.70 : x
  2. Step 2: Convert to fraction form
    204,255.96/306,387.54 = 71,138.70/x
  3. Step 3: Cross multiply
    204,255.96x = 306,387.54 × 71,138.70
  4. Step 4: Simplify right side
    204,255.96x = 21,796,011,291.80
  5. Step 5: Solve for x
    x = 21,796,011,291.80/204,255.96
  6. Step 6: Final answer
    x = 106,709.30

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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.