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Finding the Fourth Proportional to 137,107.69, 189,230.48 and 80,508.13

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Solution

The fourth proportional to 137,107.69, 189,230.48 and 80,508.13 is: 111,114.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,107.69 : 189,230.48 = 80,508.13 : x
  2. Step 2: Convert to fraction form
    137,107.69/189,230.48 = 80,508.13/x
  3. Step 3: Cross multiply
    137,107.69x = 189,230.48 × 80,508.13
  4. Step 4: Simplify right side
    137,107.69x = 15,234,591,510.09
  5. Step 5: Solve for x
    x = 15,234,591,510.09/137,107.69
  6. Step 6: Final answer
    x = 111,114.06

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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.