Home / 143,558.33-198,121.94-83,130.03

Finding the Fourth Proportional to 143,558.33, 198,121.94 and 83,130.03

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Solution

The fourth proportional to 143,558.33, 198,121.94 and 83,130.03 is: 114,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,558.33 : 198,121.94 = 83,130.03 : x
  2. Step 2: Convert to fraction form
    143,558.33/198,121.94 = 83,130.03/x
  3. Step 3: Cross multiply
    143,558.33x = 198,121.94 × 83,130.03
  4. Step 4: Simplify right side
    143,558.33x = 16,469,882,400.21
  5. Step 5: Solve for x
    x = 16,469,882,400.21/143,558.33
  6. Step 6: Final answer
    x = 114,726.07

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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.