Home / 192,861.49-289,338.42-80,479.19

Finding the Fourth Proportional to 192,861.49, 289,338.42 and 80,479.19

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Solution

The fourth proportional to 192,861.49, 289,338.42 and 80,479.19 is: 120,738.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,861.49 : 289,338.42 = 80,479.19 : x
  2. Step 2: Convert to fraction form
    192,861.49/289,338.42 = 80,479.19/x
  3. Step 3: Cross multiply
    192,861.49x = 289,338.42 × 80,479.19
  4. Step 4: Simplify right side
    192,861.49x = 23,285,722,702.62
  5. Step 5: Solve for x
    x = 23,285,722,702.62/192,861.49
  6. Step 6: Final answer
    x = 120,738.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.