Home / 143,944.92-198,639.84-80,281.44

Finding the Fourth Proportional to 143,944.92, 198,639.84 and 80,281.44

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Solution

The fourth proportional to 143,944.92, 198,639.84 and 80,281.44 is: 110,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,944.92 : 198,639.84 = 80,281.44 : x
  2. Step 2: Convert to fraction form
    143,944.92/198,639.84 = 80,281.44/x
  3. Step 3: Cross multiply
    143,944.92x = 198,639.84 × 80,281.44
  4. Step 4: Simplify right side
    143,944.92x = 15,947,092,396.57
  5. Step 5: Solve for x
    x = 15,947,092,396.57/143,944.92
  6. Step 6: Final answer
    x = 110,786.07

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1.5x scale

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.