Home / 83,769.80-125,913.90-82,214.60

Finding the Fourth Proportional to 83,769.80, 125,913.90 and 82,214.60

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Solution

The fourth proportional to 83,769.80, 125,913.90 and 82,214.60 is: 123,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,769.80 : 125,913.90 = 82,214.60 : x
  2. Step 2: Convert to fraction form
    83,769.80/125,913.90 = 82,214.60/x
  3. Step 3: Cross multiply
    83,769.80x = 125,913.90 × 82,214.60
  4. Step 4: Simplify right side
    83,769.80x = 10,351,960,922.94
  5. Step 5: Solve for x
    x = 10,351,960,922.94/83,769.80
  6. Step 6: Final answer
    x = 123,576.29

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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.