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Finding the Fourth Proportional to 122,610.34, 169,217.39 and 68,894.19

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Solution

The fourth proportional to 122,610.34, 169,217.39 and 68,894.19 is: 95,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,610.34 : 169,217.39 = 68,894.19 : x
  2. Step 2: Convert to fraction form
    122,610.34/169,217.39 = 68,894.19/x
  3. Step 3: Cross multiply
    122,610.34x = 169,217.39 × 68,894.19
  4. Step 4: Simplify right side
    122,610.34x = 11,658,094,250.45
  5. Step 5: Solve for x
    x = 11,658,094,250.45/122,610.34
  6. Step 6: Final answer
    x = 95,082.47

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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.