Home / 167,757.21-231,428.65-99,735.59

Finding the Fourth Proportional to 167,757.21, 231,428.65 and 99,735.59

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Solution

The fourth proportional to 167,757.21, 231,428.65 and 99,735.59 is: 137,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,757.21 : 231,428.65 = 99,735.59 : x
  2. Step 2: Convert to fraction form
    167,757.21/231,428.65 = 99,735.59/x
  3. Step 3: Cross multiply
    167,757.21x = 231,428.65 × 99,735.59
  4. Step 4: Simplify right side
    167,757.21x = 23,081,672,372.08
  5. Step 5: Solve for x
    x = 23,081,672,372.08/167,757.21
  6. Step 6: Final answer
    x = 137,589.75

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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.