Home / 135,850.44-187,469.96-81,433.35

Finding the Fourth Proportional to 135,850.44, 187,469.96 and 81,433.35

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Solution

The fourth proportional to 135,850.44, 187,469.96 and 81,433.35 is: 112,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,850.44 : 187,469.96 = 81,433.35 : x
  2. Step 2: Convert to fraction form
    135,850.44/187,469.96 = 81,433.35/x
  3. Step 3: Cross multiply
    135,850.44x = 187,469.96 × 81,433.35
  4. Step 4: Simplify right side
    135,850.44x = 15,266,307,070.75
  5. Step 5: Solve for x
    x = 15,266,307,070.75/135,850.44
  6. Step 6: Final answer
    x = 112,375.84

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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.