Home / 198,659.09-274,141.99-108,015.13

Finding the Fourth Proportional to 198,659.09, 274,141.99 and 108,015.13

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Solution

The fourth proportional to 198,659.09, 274,141.99 and 108,015.13 is: 149,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,659.09 : 274,141.99 = 108,015.13 : x
  2. Step 2: Convert to fraction form
    198,659.09/274,141.99 = 108,015.13/x
  3. Step 3: Cross multiply
    198,659.09x = 274,141.99 × 108,015.13
  4. Step 4: Simplify right side
    198,659.09x = 29,611,481,436.97
  5. Step 5: Solve for x
    x = 29,611,481,436.97/198,659.09
  6. Step 6: Final answer
    x = 149,056.77

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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.