Home / 200,621.57-300,743.98-67,408.67

Finding the Fourth Proportional to 200,621.57, 300,743.98 and 67,408.67

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Solution

The fourth proportional to 200,621.57, 300,743.98 and 67,408.67 is: 101,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,621.57 : 300,743.98 = 67,408.67 : x
  2. Step 2: Convert to fraction form
    200,621.57/300,743.98 = 67,408.67/x
  3. Step 3: Cross multiply
    200,621.57x = 300,743.98 × 67,408.67
  4. Step 4: Simplify right side
    200,621.57x = 20,272,752,285.64
  5. Step 5: Solve for x
    x = 20,272,752,285.64/200,621.57
  6. Step 6: Final answer
    x = 101,049.71

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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.