Home / 198,513.82-273,948.56-107,869.80

Finding the Fourth Proportional to 198,513.82, 273,948.56 and 107,869.80

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Solution

The fourth proportional to 198,513.82, 273,948.56 and 107,869.80 is: 148,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,513.82 : 273,948.56 = 107,869.80 : x
  2. Step 2: Convert to fraction form
    198,513.82/273,948.56 = 107,869.80/x
  3. Step 3: Cross multiply
    198,513.82x = 273,948.56 × 107,869.80
  4. Step 4: Simplify right side
    198,513.82x = 29,550,774,468.40
  5. Step 5: Solve for x
    x = 29,550,774,468.40/198,513.82
  6. Step 6: Final answer
    x = 148,860.04

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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.