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Finding the Fourth Proportional to 171,044.80, 256,567.20 and 71,171.80

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Solution

The fourth proportional to 171,044.80, 256,567.20 and 71,171.80 is: 106,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,044.80 : 256,567.20 = 71,171.80 : x
  2. Step 2: Convert to fraction form
    171,044.80/256,567.20 = 71,171.80/x
  3. Step 3: Cross multiply
    171,044.80x = 256,567.20 × 71,171.80
  4. Step 4: Simplify right side
    171,044.80x = 18,260,349,444.96
  5. Step 5: Solve for x
    x = 18,260,349,444.96/171,044.80
  6. Step 6: Final answer
    x = 106,757.70

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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.