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Finding the Fourth Proportional to 135,449.69, 203,139.90 and 55,544.00

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Solution

The fourth proportional to 135,449.69, 203,139.90 and 55,544.00 is: 83,301.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,449.69 : 203,139.90 = 55,544.00 : x
  2. Step 2: Convert to fraction form
    135,449.69/203,139.90 = 55,544.00/x
  3. Step 3: Cross multiply
    135,449.69x = 203,139.90 × 55,544.00
  4. Step 4: Simplify right side
    135,449.69x = 11,283,201,589.90
  5. Step 5: Solve for x
    x = 11,283,201,589.90/135,449.69
  6. Step 6: Final answer
    x = 83,301.79

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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.