Home / 140,982.82-194,556.39-77,320.87

Finding the Fourth Proportional to 140,982.82, 194,556.39 and 77,320.87

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Solution

The fourth proportional to 140,982.82, 194,556.39 and 77,320.87 is: 106,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,982.82 : 194,556.39 = 77,320.87 : x
  2. Step 2: Convert to fraction form
    140,982.82/194,556.39 = 77,320.87/x
  3. Step 3: Cross multiply
    140,982.82x = 194,556.39 × 77,320.87
  4. Step 4: Simplify right side
    140,982.82x = 15,043,269,338.86
  5. Step 5: Solve for x
    x = 15,043,269,338.86/140,982.82
  6. Step 6: Final answer
    x = 106,702.85

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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.