Home / 107,422.89-161,137.53-51,268.92

Finding the Fourth Proportional to 107,422.89, 161,137.53 and 51,268.92

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Solution

The fourth proportional to 107,422.89, 161,137.53 and 51,268.92 is: 76,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,422.89 : 161,137.53 = 51,268.92 : x
  2. Step 2: Convert to fraction form
    107,422.89/161,137.53 = 51,268.92/x
  3. Step 3: Cross multiply
    107,422.89x = 161,137.53 × 51,268.92
  4. Step 4: Simplify right side
    107,422.89x = 8,261,347,134.57
  5. Step 5: Solve for x
    x = 8,261,347,134.57/107,422.89
  6. Step 6: Final answer
    x = 76,904.90

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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.