Home / 198,574.37-274,035.38-107,930.28

Finding the Fourth Proportional to 198,574.37, 274,035.38 and 107,930.28

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Solution

The fourth proportional to 198,574.37, 274,035.38 and 107,930.28 is: 148,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,574.37 : 274,035.38 = 107,930.28 : x
  2. Step 2: Convert to fraction form
    198,574.37/274,035.38 = 107,930.28/x
  3. Step 3: Cross multiply
    198,574.37x = 274,035.38 × 107,930.28
  4. Step 4: Simplify right side
    198,574.37x = 29,576,714,753.66
  5. Step 5: Solve for x
    x = 29,576,714,753.66/198,574.37
  6. Step 6: Final answer
    x = 148,945.28

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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.