Home / 198,836.32-274,400.60-113,969.40

Finding the Fourth Proportional to 198,836.32, 274,400.60 and 113,969.40

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Solution

The fourth proportional to 198,836.32, 274,400.60 and 113,969.40 is: 157,281.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,836.32 : 274,400.60 = 113,969.40 : x
  2. Step 2: Convert to fraction form
    198,836.32/274,400.60 = 113,969.40/x
  3. Step 3: Cross multiply
    198,836.32x = 274,400.60 × 113,969.40
  4. Step 4: Simplify right side
    198,836.32x = 31,273,271,741.64
  5. Step 5: Solve for x
    x = 31,273,271,741.64/198,836.32
  6. Step 6: Final answer
    x = 157,281.49

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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.