Home / 198,631.31-274,116.61-107,993.37

Finding the Fourth Proportional to 198,631.31, 274,116.61 and 107,993.37

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Solution

The fourth proportional to 198,631.31, 274,116.61 and 107,993.37 is: 149,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,631.31 : 274,116.61 = 107,993.37 : x
  2. Step 2: Convert to fraction form
    198,631.31/274,116.61 = 107,993.37/x
  3. Step 3: Cross multiply
    198,631.31x = 274,116.61 × 107,993.37
  4. Step 4: Simplify right side
    198,631.31x = 29,602,776,486.88
  5. Step 5: Solve for x
    x = 29,602,776,486.88/198,631.31
  6. Step 6: Final answer
    x = 149,033.79

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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.