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Finding the Fourth Proportional to 121,753.01, 168,035.06 and 68,049.20

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Solution

The fourth proportional to 121,753.01, 168,035.06 and 68,049.20 is: 93,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,753.01 : 168,035.06 = 68,049.20 : x
  2. Step 2: Convert to fraction form
    121,753.01/168,035.06 = 68,049.20/x
  3. Step 3: Cross multiply
    121,753.01x = 168,035.06 × 68,049.20
  4. Step 4: Simplify right side
    121,753.01x = 11,434,650,224.53
  5. Step 5: Solve for x
    x = 11,434,650,224.53/121,753.01
  6. Step 6: Final answer
    x = 93,916.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.