Home / 195,679.03-269,917.70-129,375.21

Finding the Fourth Proportional to 195,679.03, 269,917.70 and 129,375.21

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Solution

The fourth proportional to 195,679.03, 269,917.70 and 129,375.21 is: 178,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,679.03 : 269,917.70 = 129,375.21 : x
  2. Step 2: Convert to fraction form
    195,679.03/269,917.70 = 129,375.21/x
  3. Step 3: Cross multiply
    195,679.03x = 269,917.70 × 129,375.21
  4. Step 4: Simplify right side
    195,679.03x = 34,920,657,770.63
  5. Step 5: Solve for x
    x = 34,920,657,770.63/195,679.03
  6. Step 6: Final answer
    x = 178,458.87

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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.