Home / 204,954.90-307,286.55-78,546.30

Finding the Fourth Proportional to 204,954.90, 307,286.55 and 78,546.30

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Solution

The fourth proportional to 204,954.90, 307,286.55 and 78,546.30 is: 117,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,954.90 : 307,286.55 = 78,546.30 : x
  2. Step 2: Convert to fraction form
    204,954.90/307,286.55 = 78,546.30/x
  3. Step 3: Cross multiply
    204,954.90x = 307,286.55 × 78,546.30
  4. Step 4: Simplify right side
    204,954.90x = 24,136,221,542.27
  5. Step 5: Solve for x
    x = 24,136,221,542.27/204,954.90
  6. Step 6: Final answer
    x = 117,763.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.