Home / 268,134.68-402,201.75-68,455.10

Finding the Fourth Proportional to 268,134.68, 402,201.75 and 68,455.10

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Solution

The fourth proportional to 268,134.68, 402,201.75 and 68,455.10 is: 102,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,134.68 : 402,201.75 = 68,455.10 : x
  2. Step 2: Convert to fraction form
    268,134.68/402,201.75 = 68,455.10/x
  3. Step 3: Cross multiply
    268,134.68x = 402,201.75 × 68,455.10
  4. Step 4: Simplify right side
    268,134.68x = 27,532,761,016.43
  5. Step 5: Solve for x
    x = 27,532,761,016.43/268,134.68
  6. Step 6: Final answer
    x = 102,682.58

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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.