Home / 108,791.28-162,869.96-80,835.26

Finding the Fourth Proportional to 108,791.28, 162,869.96 and 80,835.26

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Solution

The fourth proportional to 108,791.28, 162,869.96 and 80,835.26 is: 121,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,791.28 : 162,869.96 = 80,835.26 : x
  2. Step 2: Convert to fraction form
    108,791.28/162,869.96 = 80,835.26/x
  3. Step 3: Cross multiply
    108,791.28x = 162,869.96 × 80,835.26
  4. Step 4: Simplify right side
    108,791.28x = 13,165,634,344.26
  5. Step 5: Solve for x
    x = 13,165,634,344.26/108,791.28
  6. Step 6: Final answer
    x = 121,017.37

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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.