Home / 144,108.45-198,869.45-80,446.23

Finding the Fourth Proportional to 144,108.45, 198,869.45 and 80,446.23

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Solution

The fourth proportional to 144,108.45, 198,869.45 and 80,446.23 is: 111,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,108.45 : 198,869.45 = 80,446.23 : x
  2. Step 2: Convert to fraction form
    144,108.45/198,869.45 = 80,446.23/x
  3. Step 3: Cross multiply
    144,108.45x = 198,869.45 × 80,446.23
  4. Step 4: Simplify right side
    144,108.45x = 15,998,297,112.44
  5. Step 5: Solve for x
    x = 15,998,297,112.44/144,108.45
  6. Step 6: Final answer
    x = 111,015.68

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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.