Home / 198,815.04-274,367.46-108,172.08

Finding the Fourth Proportional to 198,815.04, 274,367.46 and 108,172.08

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Solution

The fourth proportional to 198,815.04, 274,367.46 and 108,172.08 is: 149,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,815.04 : 274,367.46 = 108,172.08 : x
  2. Step 2: Convert to fraction form
    198,815.04/274,367.46 = 108,172.08/x
  3. Step 3: Cross multiply
    198,815.04x = 274,367.46 × 108,172.08
  4. Step 4: Simplify right side
    198,815.04x = 29,678,898,832.52
  5. Step 5: Solve for x
    x = 29,678,898,832.52/198,815.04
  6. Step 6: Final answer
    x = 149,278.94

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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.