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Finding the Fourth Proportional to 109,755.73, 151,474.13 and 79,154.11

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Solution

The fourth proportional to 109,755.73, 151,474.13 and 79,154.11 is: 109,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,755.73 : 151,474.13 = 79,154.11 : x
  2. Step 2: Convert to fraction form
    109,755.73/151,474.13 = 79,154.11/x
  3. Step 3: Cross multiply
    109,755.73x = 151,474.13 × 79,154.11
  4. Step 4: Simplify right side
    109,755.73x = 11,989,799,948.17
  5. Step 5: Solve for x
    x = 11,989,799,948.17/109,755.73
  6. Step 6: Final answer
    x = 109,240.77

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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.