Home / 198,629.52-274,114.14-107,991.58

Finding the Fourth Proportional to 198,629.52, 274,114.14 and 107,991.58

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Solution

The fourth proportional to 198,629.52, 274,114.14 and 107,991.58 is: 149,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,629.52 : 274,114.14 = 107,991.58 : x
  2. Step 2: Convert to fraction form
    198,629.52/274,114.14 = 107,991.58/x
  3. Step 3: Cross multiply
    198,629.52x = 274,114.14 × 107,991.58
  4. Step 4: Simplify right side
    198,629.52x = 29,602,019,078.94
  5. Step 5: Solve for x
    x = 29,602,019,078.94/198,629.52
  6. Step 6: Final answer
    x = 149,031.32

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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.