Home / 143,877.12-198,546.49-83,443.89

Finding the Fourth Proportional to 143,877.12, 198,546.49 and 83,443.89

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Solution

The fourth proportional to 143,877.12, 198,546.49 and 83,443.89 is: 115,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,877.12 : 198,546.49 = 83,443.89 : x
  2. Step 2: Convert to fraction form
    143,877.12/198,546.49 = 83,443.89/x
  3. Step 3: Cross multiply
    143,877.12x = 198,546.49 × 83,443.89
  4. Step 4: Simplify right side
    143,877.12x = 16,567,491,471.45
  5. Step 5: Solve for x
    x = 16,567,491,471.45/143,877.12
  6. Step 6: Final answer
    x = 115,150.29

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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.