Home / 68,198.02-102,313.09-21,450.89

Finding the Fourth Proportional to 68,198.02, 102,313.09 and 21,450.89

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Solution

The fourth proportional to 68,198.02, 102,313.09 and 21,450.89 is: 32,181.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,198.02 : 102,313.09 = 21,450.89 : x
  2. Step 2: Convert to fraction form
    68,198.02/102,313.09 = 21,450.89/x
  3. Step 3: Cross multiply
    68,198.02x = 102,313.09 × 21,450.89
  4. Step 4: Simplify right side
    68,198.02x = 2,194,707,121.75
  5. Step 5: Solve for x
    x = 2,194,707,121.75/68,198.02
  6. Step 6: Final answer
    x = 32,181.39

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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.