Home / 198,561.17-274,016.21-107,917.35

Finding the Fourth Proportional to 198,561.17, 274,016.21 and 107,917.35

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Solution

The fourth proportional to 198,561.17, 274,016.21 and 107,917.35 is: 148,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,561.17 : 274,016.21 = 107,917.35 : x
  2. Step 2: Convert to fraction form
    198,561.17/274,016.21 = 107,917.35/x
  3. Step 3: Cross multiply
    198,561.17x = 274,016.21 × 107,917.35
  4. Step 4: Simplify right side
    198,561.17x = 29,571,104,537.60
  5. Step 5: Solve for x
    x = 29,571,104,537.60/198,561.17
  6. Step 6: Final answer
    x = 148,926.92

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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.