Home / 144,045.97-198,788.85-80,396.07

Finding the Fourth Proportional to 144,045.97, 198,788.85 and 80,396.07

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Solution

The fourth proportional to 144,045.97, 198,788.85 and 80,396.07 is: 110,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,045.97 : 198,788.85 = 80,396.07 : x
  2. Step 2: Convert to fraction form
    144,045.97/198,788.85 = 80,396.07/x
  3. Step 3: Cross multiply
    144,045.97x = 198,788.85 × 80,396.07
  4. Step 4: Simplify right side
    144,045.97x = 15,981,840,903.89
  5. Step 5: Solve for x
    x = 15,981,840,903.89/144,045.97
  6. Step 6: Final answer
    x = 110,949.59

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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.