Home / 106,515.82-146,965.62-65,112.36

Finding the Fourth Proportional to 106,515.82, 146,965.62 and 65,112.36

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Solution

The fourth proportional to 106,515.82, 146,965.62 and 65,112.36 is: 89,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,515.82 : 146,965.62 = 65,112.36 : x
  2. Step 2: Convert to fraction form
    106,515.82/146,965.62 = 65,112.36/x
  3. Step 3: Cross multiply
    106,515.82x = 146,965.62 × 65,112.36
  4. Step 4: Simplify right side
    106,515.82x = 9,569,278,357.06
  5. Step 5: Solve for x
    x = 9,569,278,357.06/106,515.82
  6. Step 6: Final answer
    x = 89,839.03

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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.