Home / 204,905.80-307,553.10-126,173.80

Finding the Fourth Proportional to 204,905.80, 307,553.10 and 126,173.80

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Solution

The fourth proportional to 204,905.80, 307,553.10 and 126,173.80 is: 189,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,905.80 : 307,553.10 = 126,173.80 : x
  2. Step 2: Convert to fraction form
    204,905.80/307,553.10 = 126,173.80/x
  3. Step 3: Cross multiply
    204,905.80x = 307,553.10 × 126,173.80
  4. Step 4: Simplify right side
    204,905.80x = 38,805,143,328.78
  5. Step 5: Solve for x
    x = 38,805,143,328.78/204,905.80
  6. Step 6: Final answer
    x = 189,380.40

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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.