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Finding the Fourth Proportional to 171,110.62, 256,731.48 and 71,243.98

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Solution

The fourth proportional to 171,110.62, 256,731.48 and 71,243.98 is: 106,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,110.62 : 256,731.48 = 71,243.98 : x
  2. Step 2: Convert to fraction form
    171,110.62/256,731.48 = 71,243.98/x
  3. Step 3: Cross multiply
    171,110.62x = 256,731.48 × 71,243.98
  4. Step 4: Simplify right side
    171,110.62x = 18,290,572,426.49
  5. Step 5: Solve for x
    x = 18,290,572,426.49/171,110.62
  6. Step 6: Final answer
    x = 106,893.26

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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.