Home / 171,517.41-257,138.73-81,514.94

Finding the Fourth Proportional to 171,517.41, 257,138.73 and 81,514.94

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Solution

The fourth proportional to 171,517.41, 257,138.73 and 81,514.94 is: 122,207.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,517.41 : 257,138.73 = 81,514.94 : x
  2. Step 2: Convert to fraction form
    171,517.41/257,138.73 = 81,514.94/x
  3. Step 3: Cross multiply
    171,517.41x = 257,138.73 × 81,514.94
  4. Step 4: Simplify right side
    171,517.41x = 20,960,646,861.93
  5. Step 5: Solve for x
    x = 20,960,646,861.93/171,517.41
  6. Step 6: Final answer
    x = 122,207.11

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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.