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Finding the Fourth Proportional to 171,026.80, 256,540.20 and 71,153.80

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Solution

The fourth proportional to 171,026.80, 256,540.20 and 71,153.80 is: 106,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,026.80 : 256,540.20 = 71,153.80 : x
  2. Step 2: Convert to fraction form
    171,026.80/256,540.20 = 71,153.80/x
  3. Step 3: Cross multiply
    171,026.80x = 256,540.20 × 71,153.80
  4. Step 4: Simplify right side
    171,026.80x = 18,253,810,082.76
  5. Step 5: Solve for x
    x = 18,253,810,082.76/171,026.80
  6. Step 6: Final answer
    x = 106,730.70

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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.