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Finding the Fourth Proportional to 197,929, 273,142.02 and 108,505

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Solution

The fourth proportional to 197,929, 273,142.02 and 108,505 is: 149,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,929 : 273,142.02 = 108,505 : x
  2. Step 2: Convert to fraction form
    197,929/273,142.02 = 108,505/x
  3. Step 3: Cross multiply
    197,929x = 273,142.02 × 108,505
  4. Step 4: Simplify right side
    197,929x = 29,637,274,880.10
  5. Step 5: Solve for x
    x = 29,637,274,880.10/197,929
  6. Step 6: Final answer
    x = 149,736.90

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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.