Home / 135,942.25-187,605.57-75,517.48

Finding the Fourth Proportional to 135,942.25, 187,605.57 and 75,517.48

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Solution

The fourth proportional to 135,942.25, 187,605.57 and 75,517.48 is: 104,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,942.25 : 187,605.57 = 75,517.48 : x
  2. Step 2: Convert to fraction form
    135,942.25/187,605.57 = 75,517.48/x
  3. Step 3: Cross multiply
    135,942.25x = 187,605.57 × 75,517.48
  4. Step 4: Simplify right side
    135,942.25x = 14,167,499,880.36
  5. Step 5: Solve for x
    x = 14,167,499,880.36/135,942.25
  6. Step 6: Final answer
    x = 104,217.05

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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.