Home / 198,696.40-274,208.23-113,829.86

Finding the Fourth Proportional to 198,696.40, 274,208.23 and 113,829.86

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Solution

The fourth proportional to 198,696.40, 274,208.23 and 113,829.86 is: 157,089.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,696.40 : 274,208.23 = 113,829.86 : x
  2. Step 2: Convert to fraction form
    198,696.40/274,208.23 = 113,829.86/x
  3. Step 3: Cross multiply
    198,696.40x = 274,208.23 × 113,829.86
  4. Step 4: Simplify right side
    198,696.40x = 31,213,084,431.75
  5. Step 5: Solve for x
    x = 31,213,084,431.75/198,696.40
  6. Step 6: Final answer
    x = 157,089.33

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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.