Home / 135,269.82-186,732.13-80,841.19

Finding the Fourth Proportional to 135,269.82, 186,732.13 and 80,841.19

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Solution

The fourth proportional to 135,269.82, 186,732.13 and 80,841.19 is: 111,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,269.82 : 186,732.13 = 80,841.19 : x
  2. Step 2: Convert to fraction form
    135,269.82/186,732.13 = 80,841.19/x
  3. Step 3: Cross multiply
    135,269.82x = 186,732.13 × 80,841.19
  4. Step 4: Simplify right side
    135,269.82x = 15,095,647,600.43
  5. Step 5: Solve for x
    x = 15,095,647,600.43/135,269.82
  6. Step 6: Final answer
    x = 111,596.57

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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.