Home / 68,126.67-102,164.09-31,164.75

Finding the Fourth Proportional to 68,126.67, 102,164.09 and 31,164.75

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Solution

The fourth proportional to 68,126.67, 102,164.09 and 31,164.75 is: 46,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,126.67 : 102,164.09 = 31,164.75 : x
  2. Step 2: Convert to fraction form
    68,126.67/102,164.09 = 31,164.75/x
  3. Step 3: Cross multiply
    68,126.67x = 102,164.09 × 31,164.75
  4. Step 4: Simplify right side
    68,126.67x = 3,183,918,168.00
  5. Step 5: Solve for x
    x = 3,183,918,168.00/68,126.67
  6. Step 6: Final answer
    x = 46,735.27

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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.