Home / 215,918.80-323,724.60-82,747.60

Finding the Fourth Proportional to 215,918.80, 323,724.60 and 82,747.60

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Solution

The fourth proportional to 215,918.80, 323,724.60 and 82,747.60 is: 124,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,918.80 : 323,724.60 = 82,747.60 : x
  2. Step 2: Convert to fraction form
    215,918.80/323,724.60 = 82,747.60/x
  3. Step 3: Cross multiply
    215,918.80x = 323,724.60 × 82,747.60
  4. Step 4: Simplify right side
    215,918.80x = 26,787,433,710.96
  5. Step 5: Solve for x
    x = 26,787,433,710.96/215,918.80
  6. Step 6: Final answer
    x = 124,062.54

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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.