Home / 123,786.88-170,826.10-67,198.26

Finding the Fourth Proportional to 123,786.88, 170,826.10 and 67,198.26

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Solution

The fourth proportional to 123,786.88, 170,826.10 and 67,198.26 is: 92,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,786.88 : 170,826.10 = 67,198.26 : x
  2. Step 2: Convert to fraction form
    123,786.88/170,826.10 = 67,198.26/x
  3. Step 3: Cross multiply
    123,786.88x = 170,826.10 × 67,198.26
  4. Step 4: Simplify right side
    123,786.88x = 11,479,216,682.59
  5. Step 5: Solve for x
    x = 11,479,216,682.59/123,786.88
  6. Step 6: Final answer
    x = 92,733.71

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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.