Home / 171,265.11-256,728.23-81,149.52

Finding the Fourth Proportional to 171,265.11, 256,728.23 and 81,149.52

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Solution

The fourth proportional to 171,265.11, 256,728.23 and 81,149.52 is: 121,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,265.11 : 256,728.23 = 81,149.52 : x
  2. Step 2: Convert to fraction form
    171,265.11/256,728.23 = 81,149.52/x
  3. Step 3: Cross multiply
    171,265.11x = 256,728.23 × 81,149.52
  4. Step 4: Simplify right side
    171,265.11x = 20,833,373,230.66
  5. Step 5: Solve for x
    x = 20,833,373,230.66/171,265.11
  6. Step 6: Final answer
    x = 121,644.00

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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.