Home / 123,910.20-170,996.26-67,321.56

Finding the Fourth Proportional to 123,910.20, 170,996.26 and 67,321.56

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Solution

The fourth proportional to 123,910.20, 170,996.26 and 67,321.56 is: 92,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,910.20 : 170,996.26 = 67,321.56 : x
  2. Step 2: Convert to fraction form
    123,910.20/170,996.26 = 67,321.56/x
  3. Step 3: Cross multiply
    123,910.20x = 170,996.26 × 67,321.56
  4. Step 4: Simplify right side
    123,910.20x = 11,511,734,977.37
  5. Step 5: Solve for x
    x = 11,511,734,977.37/123,910.20
  6. Step 6: Final answer
    x = 92,903.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.