Home / 198,857.09-274,422.39-112,832.96

Finding the Fourth Proportional to 198,857.09, 274,422.39 and 112,832.96

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Solution

The fourth proportional to 198,857.09, 274,422.39 and 112,832.96 is: 155,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,857.09 : 274,422.39 = 112,832.96 : x
  2. Step 2: Convert to fraction form
    198,857.09/274,422.39 = 112,832.96/x
  3. Step 3: Cross multiply
    198,857.09x = 274,422.39 × 112,832.96
  4. Step 4: Simplify right side
    198,857.09x = 30,963,889,181.86
  5. Step 5: Solve for x
    x = 30,963,889,181.86/198,857.09
  6. Step 6: Final answer
    x = 155,709.26

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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.