Home / 204,786.95-307,318.82-71,668.40

Finding the Fourth Proportional to 204,786.95, 307,318.82 and 71,668.40

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Solution

The fourth proportional to 204,786.95, 307,318.82 and 71,668.40 is: 107,551.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,786.95 : 307,318.82 = 71,668.40 : x
  2. Step 2: Convert to fraction form
    204,786.95/307,318.82 = 71,668.40/x
  3. Step 3: Cross multiply
    204,786.95x = 307,318.82 × 71,668.40
  4. Step 4: Simplify right side
    204,786.95x = 22,025,046,224.35
  5. Step 5: Solve for x
    x = 22,025,046,224.35/204,786.95
  6. Step 6: Final answer
    x = 107,551.03

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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.