Home / 139,623.38-209,372.94-39,760.90

Finding the Fourth Proportional to 139,623.38, 209,372.94 and 39,760.90

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Solution

The fourth proportional to 139,623.38, 209,372.94 and 39,760.90 is: 59,623.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,623.38 : 209,372.94 = 39,760.90 : x
  2. Step 2: Convert to fraction form
    139,623.38/209,372.94 = 39,760.90/x
  3. Step 3: Cross multiply
    139,623.38x = 209,372.94 × 39,760.90
  4. Step 4: Simplify right side
    139,623.38x = 8,324,856,530.05
  5. Step 5: Solve for x
    x = 8,324,856,530.05/139,623.38
  6. Step 6: Final answer
    x = 59,623.66

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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.