Home / 135,785.36-187,393.10-82,072.64

Finding the Fourth Proportional to 135,785.36, 187,393.10 and 82,072.64

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Solution

The fourth proportional to 135,785.36, 187,393.10 and 82,072.64 is: 113,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,785.36 : 187,393.10 = 82,072.64 : x
  2. Step 2: Convert to fraction form
    135,785.36/187,393.10 = 82,072.64/x
  3. Step 3: Cross multiply
    135,785.36x = 187,393.10 × 82,072.64
  4. Step 4: Simplify right side
    135,785.36x = 15,379,846,492.90
  5. Step 5: Solve for x
    x = 15,379,846,492.90/135,785.36
  6. Step 6: Final answer
    x = 113,265.86

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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.