Home / 121,138.11-181,727.91-41,167.62

Finding the Fourth Proportional to 121,138.11, 181,727.91 and 41,167.62

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Solution

The fourth proportional to 121,138.11, 181,727.91 and 41,167.62 is: 61,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,138.11 : 181,727.91 = 41,167.62 : x
  2. Step 2: Convert to fraction form
    121,138.11/181,727.91 = 41,167.62/x
  3. Step 3: Cross multiply
    121,138.11x = 181,727.91 × 41,167.62
  4. Step 4: Simplify right side
    121,138.11x = 7,481,305,542.27
  5. Step 5: Solve for x
    x = 7,481,305,542.27/121,138.11
  6. Step 6: Final answer
    x = 61,758.48

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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.