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Finding the Fourth Proportional to 119,194.11, 164,479.75 and 65,481.39

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Solution

The fourth proportional to 119,194.11, 164,479.75 and 65,481.39 is: 90,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,194.11 : 164,479.75 = 65,481.39 : x
  2. Step 2: Convert to fraction form
    119,194.11/164,479.75 = 65,481.39/x
  3. Step 3: Cross multiply
    119,194.11x = 164,479.75 × 65,481.39
  4. Step 4: Simplify right side
    119,194.11x = 10,770,362,493.15
  5. Step 5: Solve for x
    x = 10,770,362,493.15/119,194.11
  6. Step 6: Final answer
    x = 90,359.85

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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.