Home / 266,778.11-400,137.68-67,098.57

Finding the Fourth Proportional to 266,778.11, 400,137.68 and 67,098.57

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Solution

The fourth proportional to 266,778.11, 400,137.68 and 67,098.57 is: 100,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,778.11 : 400,137.68 = 67,098.57 : x
  2. Step 2: Convert to fraction form
    266,778.11/400,137.68 = 67,098.57/x
  3. Step 3: Cross multiply
    266,778.11x = 400,137.68 × 67,098.57
  4. Step 4: Simplify right side
    266,778.11x = 26,848,666,298.86
  5. Step 5: Solve for x
    x = 26,848,666,298.86/266,778.11
  6. Step 6: Final answer
    x = 100,640.44

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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.