Home / 198,751.24-274,215.36-121,243.27

Finding the Fourth Proportional to 198,751.24, 274,215.36 and 121,243.27

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Solution

The fourth proportional to 198,751.24, 274,215.36 and 121,243.27 is: 167,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,751.24 : 274,215.36 = 121,243.27 : x
  2. Step 2: Convert to fraction form
    198,751.24/274,215.36 = 121,243.27/x
  3. Step 3: Cross multiply
    198,751.24x = 274,215.36 × 121,243.27
  4. Step 4: Simplify right side
    198,751.24x = 33,246,766,930.63
  5. Step 5: Solve for x
    x = 33,246,766,930.63/198,751.24
  6. Step 6: Final answer
    x = 167,278.29

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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.