Home / 143,909.17-198,649.39-108,202.95

Finding the Fourth Proportional to 143,909.17, 198,649.39 and 108,202.95

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Solution

The fourth proportional to 143,909.17, 198,649.39 and 108,202.95 is: 149,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.17 : 198,649.39 = 108,202.95 : x
  2. Step 2: Convert to fraction form
    143,909.17/198,649.39 = 108,202.95/x
  3. Step 3: Cross multiply
    143,909.17x = 198,649.39 × 108,202.95
  4. Step 4: Simplify right side
    143,909.17x = 21,494,450,013.70
  5. Step 5: Solve for x
    x = 21,494,450,013.70/143,909.17
  6. Step 6: Final answer
    x = 149,361.23

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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.