Home / 168,910.21-253,435.94-74,091.46

Finding the Fourth Proportional to 168,910.21, 253,435.94 and 74,091.46

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Solution

The fourth proportional to 168,910.21, 253,435.94 and 74,091.46 is: 111,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,910.21 : 253,435.94 = 74,091.46 : x
  2. Step 2: Convert to fraction form
    168,910.21/253,435.94 = 74,091.46/x
  3. Step 3: Cross multiply
    168,910.21x = 253,435.94 × 74,091.46
  4. Step 4: Simplify right side
    168,910.21x = 18,777,438,560.06
  5. Step 5: Solve for x
    x = 18,777,438,560.06/168,910.21
  6. Step 6: Final answer
    x = 111,168.17

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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.