Home / 139,511.66-209,323.38-50,771.30

Finding the Fourth Proportional to 139,511.66, 209,323.38 and 50,771.30

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Solution

The fourth proportional to 139,511.66, 209,323.38 and 50,771.30 is: 76,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,511.66 : 209,323.38 = 50,771.30 : x
  2. Step 2: Convert to fraction form
    139,511.66/209,323.38 = 50,771.30/x
  3. Step 3: Cross multiply
    139,511.66x = 209,323.38 × 50,771.30
  4. Step 4: Simplify right side
    139,511.66x = 10,627,620,122.99
  5. Step 5: Solve for x
    x = 10,627,620,122.99/139,511.66
  6. Step 6: Final answer
    x = 76,177.29

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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.