Home / 68,091.14-102,136.74-18,171.42

Finding the Fourth Proportional to 68,091.14, 102,136.74 and 18,171.42

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Solution

The fourth proportional to 68,091.14, 102,136.74 and 18,171.42 is: 27,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,091.14 : 102,136.74 = 18,171.42 : x
  2. Step 2: Convert to fraction form
    68,091.14/102,136.74 = 18,171.42/x
  3. Step 3: Cross multiply
    68,091.14x = 102,136.74 × 18,171.42
  4. Step 4: Simplify right side
    68,091.14x = 1,855,969,599.97
  5. Step 5: Solve for x
    x = 1,855,969,599.97/68,091.14
  6. Step 6: Final answer
    x = 27,257.14

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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.