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Finding the Fourth Proportional to 122,635.76, 169,245.12 and 68,194.04

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Solution

The fourth proportional to 122,635.76, 169,245.12 and 68,194.04 is: 94,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,635.76 : 169,245.12 = 68,194.04 : x
  2. Step 2: Convert to fraction form
    122,635.76/169,245.12 = 68,194.04/x
  3. Step 3: Cross multiply
    122,635.76x = 169,245.12 × 68,194.04
  4. Step 4: Simplify right side
    122,635.76x = 11,541,508,483.08
  5. Step 5: Solve for x
    x = 11,541,508,483.08/122,635.76
  6. Step 6: Final answer
    x = 94,112.10

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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.