Home / 123,910.12-185,958.66-57,396.92

Finding the Fourth Proportional to 123,910.12, 185,958.66 and 57,396.92

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Solution

The fourth proportional to 123,910.12, 185,958.66 and 57,396.92 is: 86,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,910.12 : 185,958.66 = 57,396.92 : x
  2. Step 2: Convert to fraction form
    123,910.12/185,958.66 = 57,396.92/x
  3. Step 3: Cross multiply
    123,910.12x = 185,958.66 × 57,396.92
  4. Step 4: Simplify right side
    123,910.12x = 10,673,454,331.33
  5. Step 5: Solve for x
    x = 10,673,454,331.33/123,910.12
  6. Step 6: Final answer
    x = 86,138.68

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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.