Home / 120,726.27-181,121.61-41,840.43

Finding the Fourth Proportional to 120,726.27, 181,121.61 and 41,840.43

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Solution

The fourth proportional to 120,726.27, 181,121.61 and 41,840.43 is: 62,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,726.27 : 181,121.61 = 41,840.43 : x
  2. Step 2: Convert to fraction form
    120,726.27/181,121.61 = 41,840.43/x
  3. Step 3: Cross multiply
    120,726.27x = 181,121.61 × 41,840.43
  4. Step 4: Simplify right side
    120,726.27x = 7,578,206,044.69
  5. Step 5: Solve for x
    x = 7,578,206,044.69/120,726.27
  6. Step 6: Final answer
    x = 62,771.81

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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.