Home / 140,725.49-194,198.82-76,194.20

Finding the Fourth Proportional to 140,725.49, 194,198.82 and 76,194.20

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Solution

The fourth proportional to 140,725.49, 194,198.82 and 76,194.20 is: 105,146.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,725.49 : 194,198.82 = 76,194.20 : x
  2. Step 2: Convert to fraction form
    140,725.49/194,198.82 = 76,194.20/x
  3. Step 3: Cross multiply
    140,725.49x = 194,198.82 × 76,194.20
  4. Step 4: Simplify right side
    140,725.49x = 14,796,822,759.85
  5. Step 5: Solve for x
    x = 14,796,822,759.85/140,725.49
  6. Step 6: Final answer
    x = 105,146.72

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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.