Home / 139,843.08-209,795-51,096.44

Finding the Fourth Proportional to 139,843.08, 209,795 and 51,096.44

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Solution

The fourth proportional to 139,843.08, 209,795 and 51,096.44 is: 76,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,843.08 : 209,795 = 51,096.44 : x
  2. Step 2: Convert to fraction form
    139,843.08/209,795 = 51,096.44/x
  3. Step 3: Cross multiply
    139,843.08x = 209,795 × 51,096.44
  4. Step 4: Simplify right side
    139,843.08x = 10,719,777,629.80
  5. Step 5: Solve for x
    x = 10,719,777,629.80/139,843.08
  6. Step 6: Final answer
    x = 76,655.76

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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.