Home / 120,738.58-181,109.48-36,499.38

Finding the Fourth Proportional to 120,738.58, 181,109.48 and 36,499.38

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Solution

The fourth proportional to 120,738.58, 181,109.48 and 36,499.38 is: 54,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,738.58 : 181,109.48 = 36,499.38 : x
  2. Step 2: Convert to fraction form
    120,738.58/181,109.48 = 36,499.38/x
  3. Step 3: Cross multiply
    120,738.58x = 181,109.48 × 36,499.38
  4. Step 4: Simplify right side
    120,738.58x = 6,610,383,732.12
  5. Step 5: Solve for x
    x = 6,610,383,732.12/120,738.58
  6. Step 6: Final answer
    x = 54,749.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.