Home / 68,146.68-102,212.83-18,231.82

Finding the Fourth Proportional to 68,146.68, 102,212.83 and 18,231.82

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Solution

The fourth proportional to 68,146.68, 102,212.83 and 18,231.82 is: 27,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.68 : 102,212.83 = 18,231.82 : x
  2. Step 2: Convert to fraction form
    68,146.68/102,212.83 = 18,231.82/x
  3. Step 3: Cross multiply
    68,146.68x = 102,212.83 × 18,231.82
  4. Step 4: Simplify right side
    68,146.68x = 1,863,525,918.25
  5. Step 5: Solve for x
    x = 1,863,525,918.25/68,146.68
  6. Step 6: Final answer
    x = 27,345.81

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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.