Home / 135,991.47-187,677.09-82,278.75

Finding the Fourth Proportional to 135,991.47, 187,677.09 and 82,278.75

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Solution

The fourth proportional to 135,991.47, 187,677.09 and 82,278.75 is: 113,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,991.47 : 187,677.09 = 82,278.75 : x
  2. Step 2: Convert to fraction form
    135,991.47/187,677.09 = 82,278.75/x
  3. Step 3: Cross multiply
    135,991.47x = 187,677.09 × 82,278.75
  4. Step 4: Simplify right side
    135,991.47x = 15,441,836,368.84
  5. Step 5: Solve for x
    x = 15,441,836,368.84/135,991.47
  6. Step 6: Final answer
    x = 113,550.04

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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.