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Finding the Fourth Proportional to 171,939.90, 257,909.85 and 132,573.90

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Solution

The fourth proportional to 171,939.90, 257,909.85 and 132,573.90 is: 198,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,939.90 : 257,909.85 = 132,573.90 : x
  2. Step 2: Convert to fraction form
    171,939.90/257,909.85 = 132,573.90/x
  3. Step 3: Cross multiply
    171,939.90x = 257,909.85 × 132,573.90
  4. Step 4: Simplify right side
    171,939.90x = 34,192,114,662.92
  5. Step 5: Solve for x
    x = 34,192,114,662.92/171,939.90
  6. Step 6: Final answer
    x = 198,860.85

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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.