Home / 101,025.22-139,415.79-55,704.85

Finding the Fourth Proportional to 101,025.22, 139,415.79 and 55,704.85

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Solution

The fourth proportional to 101,025.22, 139,415.79 and 55,704.85 is: 76,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,025.22 : 139,415.79 = 55,704.85 : x
  2. Step 2: Convert to fraction form
    101,025.22/139,415.79 = 55,704.85/x
  3. Step 3: Cross multiply
    101,025.22x = 139,415.79 × 55,704.85
  4. Step 4: Simplify right side
    101,025.22x = 7,766,135,669.58
  5. Step 5: Solve for x
    x = 7,766,135,669.58/101,025.22
  6. Step 6: Final answer
    x = 76,873.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.