Home / 135,775.28-187,361.43-82,028.54

Finding the Fourth Proportional to 135,775.28, 187,361.43 and 82,028.54

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Solution

The fourth proportional to 135,775.28, 187,361.43 and 82,028.54 is: 113,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,775.28 : 187,361.43 = 82,028.54 : x
  2. Step 2: Convert to fraction form
    135,775.28/187,361.43 = 82,028.54/x
  3. Step 3: Cross multiply
    135,775.28x = 187,361.43 × 82,028.54
  4. Step 4: Simplify right side
    135,775.28x = 15,368,984,555.21
  5. Step 5: Solve for x
    x = 15,368,984,555.21/135,775.28
  6. Step 6: Final answer
    x = 113,194.28

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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.