Home / 144,167.13-198,949.85-79,640.81

Finding the Fourth Proportional to 144,167.13, 198,949.85 and 79,640.81

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Solution

The fourth proportional to 144,167.13, 198,949.85 and 79,640.81 is: 109,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,167.13 : 198,949.85 = 79,640.81 : x
  2. Step 2: Convert to fraction form
    144,167.13/198,949.85 = 79,640.81/x
  3. Step 3: Cross multiply
    144,167.13x = 198,949.85 × 79,640.81
  4. Step 4: Simplify right side
    144,167.13x = 15,844,525,810.43
  5. Step 5: Solve for x
    x = 15,844,525,810.43/144,167.13
  6. Step 6: Final answer
    x = 109,903.87

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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.