Home / 131,767.82-181,839.66-71,338.48

Finding the Fourth Proportional to 131,767.82, 181,839.66 and 71,338.48

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Solution

The fourth proportional to 131,767.82, 181,839.66 and 71,338.48 is: 98,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.82 : 181,839.66 = 71,338.48 : x
  2. Step 2: Convert to fraction form
    131,767.82/181,839.66 = 71,338.48/x
  3. Step 3: Cross multiply
    131,767.82x = 181,839.66 × 71,338.48
  4. Step 4: Simplify right side
    131,767.82x = 12,972,164,948.12
  5. Step 5: Solve for x
    x = 12,972,164,948.12/131,767.82
  6. Step 6: Final answer
    x = 98,447.14

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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.