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Finding the Fourth Proportional to 171,088.68, 256,676.76 and 71,215.68

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Solution

The fourth proportional to 171,088.68, 256,676.76 and 71,215.68 is: 106,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,088.68 : 256,676.76 = 71,215.68 : x
  2. Step 2: Convert to fraction form
    171,088.68/256,676.76 = 71,215.68/x
  3. Step 3: Cross multiply
    171,088.68x = 256,676.76 × 71,215.68
  4. Step 4: Simplify right side
    171,088.68x = 18,279,410,003.60
  5. Step 5: Solve for x
    x = 18,279,410,003.60/171,088.68
  6. Step 6: Final answer
    x = 106,841.73

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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.