Home / 139,135.45-208,735.94-110,779.65

Finding the Fourth Proportional to 139,135.45, 208,735.94 and 110,779.65

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Solution

The fourth proportional to 139,135.45, 208,735.94 and 110,779.65 is: 166,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,135.45 : 208,735.94 = 110,779.65 : x
  2. Step 2: Convert to fraction form
    139,135.45/208,735.94 = 110,779.65/x
  3. Step 3: Cross multiply
    139,135.45x = 208,735.94 × 110,779.65
  4. Step 4: Simplify right side
    139,135.45x = 23,123,694,375.62
  5. Step 5: Solve for x
    x = 23,123,694,375.62/139,135.45
  6. Step 6: Final answer
    x = 166,195.56

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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.