Home / 140,187.90-193,456.82-79,757.24

Finding the Fourth Proportional to 140,187.90, 193,456.82 and 79,757.24

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Solution

The fourth proportional to 140,187.90, 193,456.82 and 79,757.24 is: 110,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,187.90 : 193,456.82 = 79,757.24 : x
  2. Step 2: Convert to fraction form
    140,187.90/193,456.82 = 79,757.24/x
  3. Step 3: Cross multiply
    140,187.90x = 193,456.82 × 79,757.24
  4. Step 4: Simplify right side
    140,187.90x = 15,429,582,107.23
  5. Step 5: Solve for x
    x = 15,429,582,107.23/140,187.90
  6. Step 6: Final answer
    x = 110,063.58

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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.