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Finding the Fourth Proportional to 202,136.80, 303,205.20 and 68,997.10

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Solution

The fourth proportional to 202,136.80, 303,205.20 and 68,997.10 is: 103,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,136.80 : 303,205.20 = 68,997.10 : x
  2. Step 2: Convert to fraction form
    202,136.80/303,205.20 = 68,997.10/x
  3. Step 3: Cross multiply
    202,136.80x = 303,205.20 × 68,997.10
  4. Step 4: Simplify right side
    202,136.80x = 20,920,279,504.92
  5. Step 5: Solve for x
    x = 20,920,279,504.92/202,136.80
  6. Step 6: Final answer
    x = 103,495.65

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1.5x scale

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.