Home / 123,920.05-171,014.43-67,331.44

Finding the Fourth Proportional to 123,920.05, 171,014.43 and 67,331.44

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Solution

The fourth proportional to 123,920.05, 171,014.43 and 67,331.44 is: 92,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,920.05 : 171,014.43 = 67,331.44 : x
  2. Step 2: Convert to fraction form
    123,920.05/171,014.43 = 67,331.44/x
  3. Step 3: Cross multiply
    123,920.05x = 171,014.43 × 67,331.44
  4. Step 4: Simplify right side
    123,920.05x = 11,514,647,832.68
  5. Step 5: Solve for x
    x = 11,514,647,832.68/123,920.05
  6. Step 6: Final answer
    x = 92,919.97

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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.