Home / 135,364.54-186,716.42-108,571.36

Finding the Fourth Proportional to 135,364.54, 186,716.42 and 108,571.36

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Solution

The fourth proportional to 135,364.54, 186,716.42 and 108,571.36 is: 149,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,364.54 : 186,716.42 = 108,571.36 : x
  2. Step 2: Convert to fraction form
    135,364.54/186,716.42 = 108,571.36/x
  3. Step 3: Cross multiply
    135,364.54x = 186,716.42 × 108,571.36
  4. Step 4: Simplify right side
    135,364.54x = 20,272,055,653.73
  5. Step 5: Solve for x
    x = 20,272,055,653.73/135,364.54
  6. Step 6: Final answer
    x = 149,758.98

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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.