Home / 135,788.22-187,382.19-75,361.38

Finding the Fourth Proportional to 135,788.22, 187,382.19 and 75,361.38

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Solution

The fourth proportional to 135,788.22, 187,382.19 and 75,361.38 is: 103,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,788.22 : 187,382.19 = 75,361.38 : x
  2. Step 2: Convert to fraction form
    135,788.22/187,382.19 = 75,361.38/x
  3. Step 3: Cross multiply
    135,788.22x = 187,382.19 × 75,361.38
  4. Step 4: Simplify right side
    135,788.22x = 14,121,380,425.82
  5. Step 5: Solve for x
    x = 14,121,380,425.82/135,788.22
  6. Step 6: Final answer
    x = 103,995.62

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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.