Home / 198,561.28-274,015.86-107,917.44

Finding the Fourth Proportional to 198,561.28, 274,015.86 and 107,917.44

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Solution

The fourth proportional to 198,561.28, 274,015.86 and 107,917.44 is: 148,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,561.28 : 274,015.86 = 107,917.44 : x
  2. Step 2: Convert to fraction form
    198,561.28/274,015.86 = 107,917.44/x
  3. Step 3: Cross multiply
    198,561.28x = 274,015.86 × 107,917.44
  4. Step 4: Simplify right side
    198,561.28x = 29,571,090,130.60
  5. Step 5: Solve for x
    x = 29,571,090,130.60/198,561.28
  6. Step 6: Final answer
    x = 148,926.77

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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.