Home / 143,556.14-198,104.46-83,137.70

Finding the Fourth Proportional to 143,556.14, 198,104.46 and 83,137.70

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Solution

The fourth proportional to 143,556.14, 198,104.46 and 83,137.70 is: 114,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,556.14 : 198,104.46 = 83,137.70 : x
  2. Step 2: Convert to fraction form
    143,556.14/198,104.46 = 83,137.70/x
  3. Step 3: Cross multiply
    143,556.14x = 198,104.46 × 83,137.70
  4. Step 4: Simplify right side
    143,556.14x = 16,469,949,164.14
  5. Step 5: Solve for x
    x = 16,469,949,164.14/143,556.14
  6. Step 6: Final answer
    x = 114,728.28

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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.