Home / 198,741.43-274,272.78-113,858.70

Finding the Fourth Proportional to 198,741.43, 274,272.78 and 113,858.70

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Solution

The fourth proportional to 198,741.43, 274,272.78 and 113,858.70 is: 157,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,741.43 : 274,272.78 = 113,858.70 : x
  2. Step 2: Convert to fraction form
    198,741.43/274,272.78 = 113,858.70/x
  3. Step 3: Cross multiply
    198,741.43x = 274,272.78 × 113,858.70
  4. Step 4: Simplify right side
    198,741.43x = 31,228,342,176.19
  5. Step 5: Solve for x
    x = 31,228,342,176.19/198,741.43
  6. Step 6: Final answer
    x = 157,130.51

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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.