Home / 204,279.12-306,426.92-71,172.86

Finding the Fourth Proportional to 204,279.12, 306,426.92 and 71,172.86

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Solution

The fourth proportional to 204,279.12, 306,426.92 and 71,172.86 is: 106,762.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,279.12 : 306,426.92 = 71,172.86 : x
  2. Step 2: Convert to fraction form
    204,279.12/306,426.92 = 71,172.86/x
  3. Step 3: Cross multiply
    204,279.12x = 306,426.92 × 71,172.86
  4. Step 4: Simplify right side
    204,279.12x = 21,809,278,389.39
  5. Step 5: Solve for x
    x = 21,809,278,389.39/204,279.12
  6. Step 6: Final answer
    x = 106,762.15

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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.