Home / 131,767.96-181,839.56-71,338.58

Finding the Fourth Proportional to 131,767.96, 181,839.56 and 71,338.58

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Solution

The fourth proportional to 131,767.96, 181,839.56 and 71,338.58 is: 98,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.96 : 181,839.56 = 71,338.58 : x
  2. Step 2: Convert to fraction form
    131,767.96/181,839.56 = 71,338.58/x
  3. Step 3: Cross multiply
    131,767.96x = 181,839.56 × 71,338.58
  4. Step 4: Simplify right side
    131,767.96x = 12,972,175,998.22
  5. Step 5: Solve for x
    x = 12,972,175,998.22/131,767.96
  6. Step 6: Final answer
    x = 98,447.12

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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.