Home / 198,618.48-274,090.23-107,976.69

Finding the Fourth Proportional to 198,618.48, 274,090.23 and 107,976.69

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Solution

The fourth proportional to 198,618.48, 274,090.23 and 107,976.69 is: 149,006.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.48 : 274,090.23 = 107,976.69 : x
  2. Step 2: Convert to fraction form
    198,618.48/274,090.23 = 107,976.69/x
  3. Step 3: Cross multiply
    198,618.48x = 274,090.23 × 107,976.69
  4. Step 4: Simplify right side
    198,618.48x = 29,595,355,796.74
  5. Step 5: Solve for x
    x = 29,595,355,796.74/198,618.48
  6. Step 6: Final answer
    x = 149,006.05

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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.