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Finding the Fourth Proportional to 171,474.30, 257,029.20 and 82,669.95

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Solution

The fourth proportional to 171,474.30, 257,029.20 and 82,669.95 is: 123,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,474.30 : 257,029.20 = 82,669.95 : x
  2. Step 2: Convert to fraction form
    171,474.30/257,029.20 = 82,669.95/x
  3. Step 3: Cross multiply
    171,474.30x = 257,029.20 × 82,669.95
  4. Step 4: Simplify right side
    171,474.30x = 21,248,591,112.54
  5. Step 5: Solve for x
    x = 21,248,591,112.54/171,474.30
  6. Step 6: Final answer
    x = 123,917.06

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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.