Home / 74,120.26-111,224.68-68,090.46

Finding the Fourth Proportional to 74,120.26, 111,224.68 and 68,090.46

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Solution

The fourth proportional to 74,120.26, 111,224.68 and 68,090.46 is: 102,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.26 : 111,224.68 = 68,090.46 : x
  2. Step 2: Convert to fraction form
    74,120.26/111,224.68 = 68,090.46/x
  3. Step 3: Cross multiply
    74,120.26x = 111,224.68 × 68,090.46
  4. Step 4: Simplify right side
    74,120.26x = 7,573,339,624.55
  5. Step 5: Solve for x
    x = 7,573,339,624.55/74,120.26
  6. Step 6: Final answer
    x = 102,176.38

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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.