Home / 197,270.49-272,249.87-120,789.21

Finding the Fourth Proportional to 197,270.49, 272,249.87 and 120,789.21

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Solution

The fourth proportional to 197,270.49, 272,249.87 and 120,789.21 is: 166,699.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,270.49 : 272,249.87 = 120,789.21 : x
  2. Step 2: Convert to fraction form
    197,270.49/272,249.87 = 120,789.21/x
  3. Step 3: Cross multiply
    197,270.49x = 272,249.87 × 120,789.21
  4. Step 4: Simplify right side
    197,270.49x = 32,884,846,115.96
  5. Step 5: Solve for x
    x = 32,884,846,115.96/197,270.49
  6. Step 6: Final answer
    x = 166,699.27

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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.