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Finding the Fourth Proportional to 171,414.39, 257,287.43 and 82,730.33

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Solution

The fourth proportional to 171,414.39, 257,287.43 and 82,730.33 is: 124,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,414.39 : 257,287.43 = 82,730.33 : x
  2. Step 2: Convert to fraction form
    171,414.39/257,287.43 = 82,730.33/x
  3. Step 3: Cross multiply
    171,414.39x = 257,287.43 × 82,730.33
  4. Step 4: Simplify right side
    171,414.39x = 21,285,473,988.75
  5. Step 5: Solve for x
    x = 21,285,473,988.75/171,414.39
  6. Step 6: Final answer
    x = 124,175.54

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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.