Home / 197,989.21-273,240.89-111,966.31

Finding the Fourth Proportional to 197,989.21, 273,240.89 and 111,966.31

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Solution

The fourth proportional to 197,989.21, 273,240.89 and 111,966.31 is: 154,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,989.21 : 273,240.89 = 111,966.31 : x
  2. Step 2: Convert to fraction form
    197,989.21/273,240.89 = 111,966.31/x
  3. Step 3: Cross multiply
    197,989.21x = 273,240.89 × 111,966.31
  4. Step 4: Simplify right side
    197,989.21x = 30,593,774,194.42
  5. Step 5: Solve for x
    x = 30,593,774,194.42/197,989.21
  6. Step 6: Final answer
    x = 154,522.43

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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.