Home / 148,759.92-205,288.68-80,776.56

Finding the Fourth Proportional to 148,759.92, 205,288.68 and 80,776.56

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Solution

The fourth proportional to 148,759.92, 205,288.68 and 80,776.56 is: 111,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,759.92 : 205,288.68 = 80,776.56 : x
  2. Step 2: Convert to fraction form
    148,759.92/205,288.68 = 80,776.56/x
  3. Step 3: Cross multiply
    148,759.92x = 205,288.68 × 80,776.56
  4. Step 4: Simplify right side
    148,759.92x = 16,582,513,377.34
  5. Step 5: Solve for x
    x = 16,582,513,377.34/148,759.92
  6. Step 6: Final answer
    x = 111,471.65

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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.