Home / 107,315.24-161,078.82-80,568.26

Finding the Fourth Proportional to 107,315.24, 161,078.82 and 80,568.26

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Solution

The fourth proportional to 107,315.24, 161,078.82 and 80,568.26 is: 120,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,315.24 : 161,078.82 = 80,568.26 : x
  2. Step 2: Convert to fraction form
    107,315.24/161,078.82 = 80,568.26/x
  3. Step 3: Cross multiply
    107,315.24x = 161,078.82 × 80,568.26
  4. Step 4: Simplify right side
    107,315.24x = 12,977,840,250.25
  5. Step 5: Solve for x
    x = 12,977,840,250.25/107,315.24
  6. Step 6: Final answer
    x = 120,931.94

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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.