Home / 198,669.86-274,164.73-108,025.76

Finding the Fourth Proportional to 198,669.86, 274,164.73 and 108,025.76

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Solution

The fourth proportional to 198,669.86, 274,164.73 and 108,025.76 is: 149,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,669.86 : 274,164.73 = 108,025.76 : x
  2. Step 2: Convert to fraction form
    198,669.86/274,164.73 = 108,025.76/x
  3. Step 3: Cross multiply
    198,669.86x = 274,164.73 × 108,025.76
  4. Step 4: Simplify right side
    198,669.86x = 29,616,851,682.56
  5. Step 5: Solve for x
    x = 29,616,851,682.56/198,669.86
  6. Step 6: Final answer
    x = 149,075.71

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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.