Home / 198,929.20-274,525.80-108,287.77

Finding the Fourth Proportional to 198,929.20, 274,525.80 and 108,287.77

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Solution

The fourth proportional to 198,929.20, 274,525.80 and 108,287.77 is: 149,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,929.20 : 274,525.80 = 108,287.77 : x
  2. Step 2: Convert to fraction form
    198,929.20/274,525.80 = 108,287.77/x
  3. Step 3: Cross multiply
    198,929.20x = 274,525.80 × 108,287.77
  4. Step 4: Simplify right side
    198,929.20x = 29,727,784,775.40
  5. Step 5: Solve for x
    x = 29,727,784,775.40/198,929.20
  6. Step 6: Final answer
    x = 149,439.02

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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.