Home / 107,945.12-161,917.53-29,059.43

Finding the Fourth Proportional to 107,945.12, 161,917.53 and 29,059.43

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Solution

The fourth proportional to 107,945.12, 161,917.53 and 29,059.43 is: 43,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,945.12 : 161,917.53 = 29,059.43 : x
  2. Step 2: Convert to fraction form
    107,945.12/161,917.53 = 29,059.43/x
  3. Step 3: Cross multiply
    107,945.12x = 161,917.53 × 29,059.43
  4. Step 4: Simplify right side
    107,945.12x = 4,705,230,319.22
  5. Step 5: Solve for x
    x = 4,705,230,319.22/107,945.12
  6. Step 6: Final answer
    x = 43,589.10

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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.