Home / 198,637.85-274,125.62-107,999.91

Finding the Fourth Proportional to 198,637.85, 274,125.62 and 107,999.91

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Solution

The fourth proportional to 198,637.85, 274,125.62 and 107,999.91 is: 149,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.85 : 274,125.62 = 107,999.91 : x
  2. Step 2: Convert to fraction form
    198,637.85/274,125.62 = 107,999.91/x
  3. Step 3: Cross multiply
    198,637.85x = 274,125.62 × 107,999.91
  4. Step 4: Simplify right side
    198,637.85x = 29,605,542,558.69
  5. Step 5: Solve for x
    x = 29,605,542,558.69/198,637.85
  6. Step 6: Final answer
    x = 149,042.80

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1.5x scale

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.