Home / 135,090.17-202,469.15-75,801.28

Finding the Fourth Proportional to 135,090.17, 202,469.15 and 75,801.28

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Solution

The fourth proportional to 135,090.17, 202,469.15 and 75,801.28 is: 113,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,090.17 : 202,469.15 = 75,801.28 : x
  2. Step 2: Convert to fraction form
    135,090.17/202,469.15 = 75,801.28/x
  3. Step 3: Cross multiply
    135,090.17x = 202,469.15 × 75,801.28
  4. Step 4: Simplify right side
    135,090.17x = 15,347,419,718.17
  5. Step 5: Solve for x
    x = 15,347,419,718.17/135,090.17
  6. Step 6: Final answer
    x = 113,608.71

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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.