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Finding the Fourth Proportional to 171,169.56, 256,777.70 and 71,306.39

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Solution

The fourth proportional to 171,169.56, 256,777.70 and 71,306.39 is: 106,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,169.56 : 256,777.70 = 71,306.39 : x
  2. Step 2: Convert to fraction form
    171,169.56/256,777.70 = 71,306.39/x
  3. Step 3: Cross multiply
    171,169.56x = 256,777.70 × 71,306.39
  4. Step 4: Simplify right side
    171,169.56x = 18,309,891,104.92
  5. Step 5: Solve for x
    x = 18,309,891,104.92/171,169.56
  6. Step 6: Final answer
    x = 106,969.32

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1.5x scale

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.