Home / 144,105.57-198,869.04-90,392.85

Finding the Fourth Proportional to 144,105.57, 198,869.04 and 90,392.85

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Solution

The fourth proportional to 144,105.57, 198,869.04 and 90,392.85 is: 124,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,105.57 : 198,869.04 = 90,392.85 : x
  2. Step 2: Convert to fraction form
    144,105.57/198,869.04 = 90,392.85/x
  3. Step 3: Cross multiply
    144,105.57x = 198,869.04 × 90,392.85
  4. Step 4: Simplify right side
    144,105.57x = 17,976,339,302.36
  5. Step 5: Solve for x
    x = 17,976,339,302.36/144,105.57
  6. Step 6: Final answer
    x = 124,744.24

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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.