Home / 122,716.62-169,339.41-68,991.21

Finding the Fourth Proportional to 122,716.62, 169,339.41 and 68,991.21

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Solution

The fourth proportional to 122,716.62, 169,339.41 and 68,991.21 is: 95,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,716.62 : 169,339.41 = 68,991.21 : x
  2. Step 2: Convert to fraction form
    122,716.62/169,339.41 = 68,991.21/x
  3. Step 3: Cross multiply
    122,716.62x = 169,339.41 × 68,991.21
  4. Step 4: Simplify right side
    122,716.62x = 11,682,930,796.59
  5. Step 5: Solve for x
    x = 11,682,930,796.59/122,716.62
  6. Step 6: Final answer
    x = 95,202.51

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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.