Home / 198,742.83-274,268.61-108,100.77

Finding the Fourth Proportional to 198,742.83, 274,268.61 and 108,100.77

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Solution

The fourth proportional to 198,742.83, 274,268.61 and 108,100.77 is: 149,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,742.83 : 274,268.61 = 108,100.77 : x
  2. Step 2: Convert to fraction form
    198,742.83/274,268.61 = 108,100.77/x
  3. Step 3: Cross multiply
    198,742.83x = 274,268.61 × 108,100.77
  4. Step 4: Simplify right side
    198,742.83x = 29,648,647,927.83
  5. Step 5: Solve for x
    x = 29,648,647,927.83/198,742.83
  6. Step 6: Final answer
    x = 149,180.97

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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.