Home / 198,659.59-274,142.68-108,015.63

Finding the Fourth Proportional to 198,659.59, 274,142.68 and 108,015.63

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Solution

The fourth proportional to 198,659.59, 274,142.68 and 108,015.63 is: 149,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,659.59 : 274,142.68 = 108,015.63 : x
  2. Step 2: Convert to fraction form
    198,659.59/274,142.68 = 108,015.63/x
  3. Step 3: Cross multiply
    198,659.59x = 274,142.68 × 108,015.63
  4. Step 4: Simplify right side
    198,659.59x = 29,611,692,919.38
  5. Step 5: Solve for x
    x = 29,611,692,919.38/198,659.59
  6. Step 6: Final answer
    x = 149,057.46

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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.