Home / 208,982.20-313,473.30-68,722.60

Finding the Fourth Proportional to 208,982.20, 313,473.30 and 68,722.60

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Solution

The fourth proportional to 208,982.20, 313,473.30 and 68,722.60 is: 103,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,982.20 : 313,473.30 = 68,722.60 : x
  2. Step 2: Convert to fraction form
    208,982.20/313,473.30 = 68,722.60/x
  3. Step 3: Cross multiply
    208,982.20x = 313,473.30 × 68,722.60
  4. Step 4: Simplify right side
    208,982.20x = 21,542,700,206.58
  5. Step 5: Solve for x
    x = 21,542,700,206.58/208,982.20
  6. Step 6: Final answer
    x = 103,083.90

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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.