Home / 204,006.20-305,936.40-70,890.80

Finding the Fourth Proportional to 204,006.20, 305,936.40 and 70,890.80

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Solution

The fourth proportional to 204,006.20, 305,936.40 and 70,890.80 is: 106,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,006.20 : 305,936.40 = 70,890.80 : x
  2. Step 2: Convert to fraction form
    204,006.20/305,936.40 = 70,890.80/x
  3. Step 3: Cross multiply
    204,006.20x = 305,936.40 × 70,890.80
  4. Step 4: Simplify right side
    204,006.20x = 21,688,076,145.12
  5. Step 5: Solve for x
    x = 21,688,076,145.12/204,006.20
  6. Step 6: Final answer
    x = 106,310.87

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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.