Home / 135,182.38-186,542.04-74,741.89

Finding the Fourth Proportional to 135,182.38, 186,542.04 and 74,741.89

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Solution

The fourth proportional to 135,182.38, 186,542.04 and 74,741.89 is: 103,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,182.38 : 186,542.04 = 74,741.89 : x
  2. Step 2: Convert to fraction form
    135,182.38/186,542.04 = 74,741.89/x
  3. Step 3: Cross multiply
    135,182.38x = 186,542.04 × 74,741.89
  4. Step 4: Simplify right side
    135,182.38x = 13,942,504,634.06
  5. Step 5: Solve for x
    x = 13,942,504,634.06/135,182.38
  6. Step 6: Final answer
    x = 103,138.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.