Home / 122,326.96-168,739.56-76,932.96

Finding the Fourth Proportional to 122,326.96, 168,739.56 and 76,932.96

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Solution

The fourth proportional to 122,326.96, 168,739.56 and 76,932.96 is: 106,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,326.96 : 168,739.56 = 76,932.96 : x
  2. Step 2: Convert to fraction form
    122,326.96/168,739.56 = 76,932.96/x
  3. Step 3: Cross multiply
    122,326.96x = 168,739.56 × 76,932.96
  4. Step 4: Simplify right side
    122,326.96x = 12,981,633,819.90
  5. Step 5: Solve for x
    x = 12,981,633,819.90/122,326.96
  6. Step 6: Final answer
    x = 106,122.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.