Home / 198,929.23-274,525.83-108,287.80

Finding the Fourth Proportional to 198,929.23, 274,525.83 and 108,287.80

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Solution

The fourth proportional to 198,929.23, 274,525.83 and 108,287.80 is: 149,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,929.23 : 274,525.83 = 108,287.80 : x
  2. Step 2: Convert to fraction form
    198,929.23/274,525.83 = 108,287.80/x
  3. Step 3: Cross multiply
    198,929.23x = 274,525.83 × 108,287.80
  4. Step 4: Simplify right side
    198,929.23x = 29,727,798,173.87
  5. Step 5: Solve for x
    x = 29,727,798,173.87/198,929.23
  6. Step 6: Final answer
    x = 149,439.07

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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.