Home / 198,950.79-274,555.59-108,309.36

Finding the Fourth Proportional to 198,950.79, 274,555.59 and 108,309.36

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Solution

The fourth proportional to 198,950.79, 274,555.59 and 108,309.36 is: 149,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,950.79 : 274,555.59 = 108,309.36 : x
  2. Step 2: Convert to fraction form
    198,950.79/274,555.59 = 108,309.36/x
  3. Step 3: Cross multiply
    198,950.79x = 274,555.59 × 108,309.36
  4. Step 4: Simplify right side
    198,950.79x = 29,736,940,237.32
  5. Step 5: Solve for x
    x = 29,736,940,237.32/198,950.79
  6. Step 6: Final answer
    x = 149,468.82

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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.