Home / 198,641.49-274,130.63-108,003.54

Finding the Fourth Proportional to 198,641.49, 274,130.63 and 108,003.54

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Solution

The fourth proportional to 198,641.49, 274,130.63 and 108,003.54 is: 149,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,641.49 : 274,130.63 = 108,003.54 : x
  2. Step 2: Convert to fraction form
    198,641.49/274,130.63 = 108,003.54/x
  3. Step 3: Cross multiply
    198,641.49x = 274,130.63 × 108,003.54
  4. Step 4: Simplify right side
    198,641.49x = 29,607,078,462.43
  5. Step 5: Solve for x
    x = 29,607,078,462.43/198,641.49
  6. Step 6: Final answer
    x = 149,047.81

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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.