Home / 131,791.82-181,873.05-71,363.21

Finding the Fourth Proportional to 131,791.82, 181,873.05 and 71,363.21

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Solution

The fourth proportional to 131,791.82, 181,873.05 and 71,363.21 is: 98,481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,791.82 : 181,873.05 = 71,363.21 : x
  2. Step 2: Convert to fraction form
    131,791.82/181,873.05 = 71,363.21/x
  3. Step 3: Cross multiply
    131,791.82x = 181,873.05 × 71,363.21
  4. Step 4: Simplify right side
    131,791.82x = 12,979,044,660.49
  5. Step 5: Solve for x
    x = 12,979,044,660.49/131,791.82
  6. Step 6: Final answer
    x = 98,481.41

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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.