Home / 206,974.78-310,494.39-66,747.58

Finding the Fourth Proportional to 206,974.78, 310,494.39 and 66,747.58

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Solution

The fourth proportional to 206,974.78, 310,494.39 and 66,747.58 is: 100,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,974.78 : 310,494.39 = 66,747.58 : x
  2. Step 2: Convert to fraction form
    206,974.78/310,494.39 = 66,747.58/x
  3. Step 3: Cross multiply
    206,974.78x = 310,494.39 × 66,747.58
  4. Step 4: Simplify right side
    206,974.78x = 20,724,749,136.08
  5. Step 5: Solve for x
    x = 20,724,749,136.08/206,974.78
  6. Step 6: Final answer
    x = 100,131.76

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1.5x scale

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.