Home / 151,163.20-226,919.40-81,179.20

Finding the Fourth Proportional to 151,163.20, 226,919.40 and 81,179.20

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Solution

The fourth proportional to 151,163.20, 226,919.40 and 81,179.20 is: 121,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,163.20 : 226,919.40 = 81,179.20 : x
  2. Step 2: Convert to fraction form
    151,163.20/226,919.40 = 81,179.20/x
  3. Step 3: Cross multiply
    151,163.20x = 226,919.40 × 81,179.20
  4. Step 4: Simplify right side
    151,163.20x = 18,421,135,356.48
  5. Step 5: Solve for x
    x = 18,421,135,356.48/151,163.20
  6. Step 6: Final answer
    x = 121,862.57

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1.5x scale

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.