Home / 122,628.45-169,230.66-68,918.37

Finding the Fourth Proportional to 122,628.45, 169,230.66 and 68,918.37

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Solution

The fourth proportional to 122,628.45, 169,230.66 and 68,918.37 is: 95,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,628.45 : 169,230.66 = 68,918.37 : x
  2. Step 2: Convert to fraction form
    122,628.45/169,230.66 = 68,918.37/x
  3. Step 3: Cross multiply
    122,628.45x = 169,230.66 × 68,918.37
  4. Step 4: Simplify right side
    122,628.45x = 11,663,101,241.22
  5. Step 5: Solve for x
    x = 11,663,101,241.22/122,628.45
  6. Step 6: Final answer
    x = 95,109.26

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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.