Home / 143,496.36-198,021.92-83,069.55

Finding the Fourth Proportional to 143,496.36, 198,021.92 and 83,069.55

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Solution

The fourth proportional to 143,496.36, 198,021.92 and 83,069.55 is: 114,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,496.36 : 198,021.92 = 83,069.55 : x
  2. Step 2: Convert to fraction form
    143,496.36/198,021.92 = 83,069.55/x
  3. Step 3: Cross multiply
    143,496.36x = 198,021.92 × 83,069.55
  4. Step 4: Simplify right side
    143,496.36x = 16,449,591,369.19
  5. Step 5: Solve for x
    x = 16,449,591,369.19/143,496.36
  6. Step 6: Final answer
    x = 114,634.21

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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.