Home / 197,633.82-272,734.76-106,989.78

Finding the Fourth Proportional to 197,633.82, 272,734.76 and 106,989.78

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Solution

The fourth proportional to 197,633.82, 272,734.76 and 106,989.78 is: 147,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,633.82 : 272,734.76 = 106,989.78 : x
  2. Step 2: Convert to fraction form
    197,633.82/272,734.76 = 106,989.78/x
  3. Step 3: Cross multiply
    197,633.82x = 272,734.76 × 106,989.78
  4. Step 4: Simplify right side
    197,633.82x = 29,179,831,435.80
  5. Step 5: Solve for x
    x = 29,179,831,435.80/197,633.82
  6. Step 6: Final answer
    x = 147,645.94

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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.