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Finding the Fourth Proportional to 122,351.33, 168,861.66 and 68,639.76

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Solution

The fourth proportional to 122,351.33, 168,861.66 and 68,639.76 is: 94,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,351.33 : 168,861.66 = 68,639.76 : x
  2. Step 2: Convert to fraction form
    122,351.33/168,861.66 = 68,639.76/x
  3. Step 3: Cross multiply
    122,351.33x = 168,861.66 × 68,639.76
  4. Step 4: Simplify right side
    122,351.33x = 11,590,623,815.60
  5. Step 5: Solve for x
    x = 11,590,623,815.60/122,351.33
  6. Step 6: Final answer
    x = 94,732.31

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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.