Home / 198,574.74-274,035.89-107,930.66

Finding the Fourth Proportional to 198,574.74, 274,035.89 and 107,930.66

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Solution

The fourth proportional to 198,574.74, 274,035.89 and 107,930.66 is: 148,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,574.74 : 274,035.89 = 107,930.66 : x
  2. Step 2: Convert to fraction form
    198,574.74/274,035.89 = 107,930.66/x
  3. Step 3: Cross multiply
    198,574.74x = 274,035.89 × 107,930.66
  4. Step 4: Simplify right side
    198,574.74x = 29,576,873,371.03
  5. Step 5: Solve for x
    x = 29,576,873,371.03/198,574.74
  6. Step 6: Final answer
    x = 148,945.80

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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.