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Finding the Fourth Proportional to 171,203.16, 256,665.56 and 71,437.66

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Solution

The fourth proportional to 171,203.16, 256,665.56 and 71,437.66 is: 107,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,203.16 : 256,665.56 = 71,437.66 : x
  2. Step 2: Convert to fraction form
    171,203.16/256,665.56 = 71,437.66/x
  3. Step 3: Cross multiply
    171,203.16x = 256,665.56 × 71,437.66
  4. Step 4: Simplify right side
    171,203.16x = 18,335,587,008.99
  5. Step 5: Solve for x
    x = 18,335,587,008.99/171,203.16
  6. Step 6: Final answer
    x = 107,098.41

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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.