Home / 196,800.64-271,581.48-111,915.76

Finding the Fourth Proportional to 196,800.64, 271,581.48 and 111,915.76

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Solution

The fourth proportional to 196,800.64, 271,581.48 and 111,915.76 is: 154,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,800.64 : 271,581.48 = 111,915.76 : x
  2. Step 2: Convert to fraction form
    196,800.64/271,581.48 = 111,915.76/x
  3. Step 3: Cross multiply
    196,800.64x = 271,581.48 × 111,915.76
  4. Step 4: Simplify right side
    196,800.64x = 30,394,247,736.12
  5. Step 5: Solve for x
    x = 30,394,247,736.12/196,800.64
  6. Step 6: Final answer
    x = 154,441.81

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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.