Home / 139,278.13-209,000.20-50,538.56

Finding the Fourth Proportional to 139,278.13, 209,000.20 and 50,538.56

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Solution

The fourth proportional to 139,278.13, 209,000.20 and 50,538.56 is: 75,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,278.13 : 209,000.20 = 50,538.56 : x
  2. Step 2: Convert to fraction form
    139,278.13/209,000.20 = 50,538.56/x
  3. Step 3: Cross multiply
    139,278.13x = 209,000.20 × 50,538.56
  4. Step 4: Simplify right side
    139,278.13x = 10,562,568,658.94
  5. Step 5: Solve for x
    x = 10,562,568,658.94/139,278.13
  6. Step 6: Final answer
    x = 75,837.95

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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.