Home / 139,249.91-208,882.98-39,401.75

Finding the Fourth Proportional to 139,249.91, 208,882.98 and 39,401.75

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Solution

The fourth proportional to 139,249.91, 208,882.98 and 39,401.75 is: 59,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,249.91 : 208,882.98 = 39,401.75 : x
  2. Step 2: Convert to fraction form
    139,249.91/208,882.98 = 39,401.75/x
  3. Step 3: Cross multiply
    139,249.91x = 208,882.98 × 39,401.75
  4. Step 4: Simplify right side
    139,249.91x = 8,230,353,912.80
  5. Step 5: Solve for x
    x = 8,230,353,912.80/139,249.91
  6. Step 6: Final answer
    x = 59,104.92

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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.