Home / 199,129.89-274,821.66-122,634.03

Finding the Fourth Proportional to 199,129.89, 274,821.66 and 122,634.03

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Solution

The fourth proportional to 199,129.89, 274,821.66 and 122,634.03 is: 169,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,129.89 : 274,821.66 = 122,634.03 : x
  2. Step 2: Convert to fraction form
    199,129.89/274,821.66 = 122,634.03/x
  3. Step 3: Cross multiply
    199,129.89x = 274,821.66 × 122,634.03
  4. Step 4: Simplify right side
    199,129.89x = 33,702,487,697.09
  5. Step 5: Solve for x
    x = 33,702,487,697.09/199,129.89
  6. Step 6: Final answer
    x = 169,248.76

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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.