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Finding the Fourth Proportional to 171,103.59, 256,721.00 and 71,236.97

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Solution

The fourth proportional to 171,103.59, 256,721.00 and 71,236.97 is: 106,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,103.59 : 256,721.00 = 71,236.97 : x
  2. Step 2: Convert to fraction form
    171,103.59/256,721.00 = 71,236.97/x
  3. Step 3: Cross multiply
    171,103.59x = 256,721.00 × 71,236.97
  4. Step 4: Simplify right side
    171,103.59x = 18,288,025,498.28
  5. Step 5: Solve for x
    x = 18,288,025,498.28/171,103.59
  6. Step 6: Final answer
    x = 106,882.77

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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.