Home / 198,811.72-274,367.72-113,945.16

Finding the Fourth Proportional to 198,811.72, 274,367.72 and 113,945.16

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Solution

The fourth proportional to 198,811.72, 274,367.72 and 113,945.16 is: 157,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,811.72 : 274,367.72 = 113,945.16 : x
  2. Step 2: Convert to fraction form
    198,811.72/274,367.72 = 113,945.16/x
  3. Step 3: Cross multiply
    198,811.72x = 274,367.72 × 113,945.16
  4. Step 4: Simplify right side
    198,811.72x = 31,262,873,754.24
  5. Step 5: Solve for x
    x = 31,262,873,754.24/198,811.72
  6. Step 6: Final answer
    x = 157,248.65

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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.