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Finding the Fourth Proportional to 171,098.43, 256,475.43 and 71,313.87

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Solution

The fourth proportional to 171,098.43, 256,475.43 and 71,313.87 is: 106,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,098.43 : 256,475.43 = 71,313.87 : x
  2. Step 2: Convert to fraction form
    171,098.43/256,475.43 = 71,313.87/x
  3. Step 3: Cross multiply
    171,098.43x = 256,475.43 × 71,313.87
  4. Step 4: Simplify right side
    171,098.43x = 18,290,255,473.21
  5. Step 5: Solve for x
    x = 18,290,255,473.21/171,098.43
  6. Step 6: Final answer
    x = 106,899.03

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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.