Home / 132,942.97-199,312.21-68,832.38

Finding the Fourth Proportional to 132,942.97, 199,312.21 and 68,832.38

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Solution

The fourth proportional to 132,942.97, 199,312.21 and 68,832.38 is: 103,195.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,942.97 : 199,312.21 = 68,832.38 : x
  2. Step 2: Convert to fraction form
    132,942.97/199,312.21 = 68,832.38/x
  3. Step 3: Cross multiply
    132,942.97x = 199,312.21 × 68,832.38
  4. Step 4: Simplify right side
    132,942.97x = 13,719,134,361.68
  5. Step 5: Solve for x
    x = 13,719,134,361.68/132,942.97
  6. Step 6: Final answer
    x = 103,195.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.