Home / 111,508.11-166,873.77-91,284.03

Finding the Fourth Proportional to 111,508.11, 166,873.77 and 91,284.03

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Solution

The fourth proportional to 111,508.11, 166,873.77 and 91,284.03 is: 136,608.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.11 : 166,873.77 = 91,284.03 : x
  2. Step 2: Convert to fraction form
    111,508.11/166,873.77 = 91,284.03/x
  3. Step 3: Cross multiply
    111,508.11x = 166,873.77 × 91,284.03
  4. Step 4: Simplify right side
    111,508.11x = 15,232,910,226.89
  5. Step 5: Solve for x
    x = 15,232,910,226.89/111,508.11
  6. Step 6: Final answer
    x = 136,608.09

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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.