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Finding the Fourth Proportional to 148,169.57, 204,474.02 and 80,186.57

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Solution

The fourth proportional to 148,169.57, 204,474.02 and 80,186.57 is: 110,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,169.57 : 204,474.02 = 80,186.57 : x
  2. Step 2: Convert to fraction form
    148,169.57/204,474.02 = 80,186.57/x
  3. Step 3: Cross multiply
    148,169.57x = 204,474.02 × 80,186.57
  4. Step 4: Simplify right side
    148,169.57x = 16,396,068,894.61
  5. Step 5: Solve for x
    x = 16,396,068,894.61/148,169.57
  6. Step 6: Final answer
    x = 110,657.47

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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.