Home / 138,821.92-208,182.66-50,051.59

Finding the Fourth Proportional to 138,821.92, 208,182.66 and 50,051.59

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Solution

The fourth proportional to 138,821.92, 208,182.66 and 50,051.59 is: 75,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,821.92 : 208,182.66 = 50,051.59 : x
  2. Step 2: Convert to fraction form
    138,821.92/208,182.66 = 50,051.59/x
  3. Step 3: Cross multiply
    138,821.92x = 208,182.66 × 50,051.59
  4. Step 4: Simplify right side
    138,821.92x = 10,419,873,143.43
  5. Step 5: Solve for x
    x = 10,419,873,143.43/138,821.92
  6. Step 6: Final answer
    x = 75,059.28

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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.