Home / 128,511.32-192,761.15-33,739.27

Finding the Fourth Proportional to 128,511.32, 192,761.15 and 33,739.27

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Solution

The fourth proportional to 128,511.32, 192,761.15 and 33,739.27 is: 50,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,511.32 : 192,761.15 = 33,739.27 : x
  2. Step 2: Convert to fraction form
    128,511.32/192,761.15 = 33,739.27/x
  3. Step 3: Cross multiply
    128,511.32x = 192,761.15 × 33,739.27
  4. Step 4: Simplify right side
    128,511.32x = 6,503,620,166.88
  5. Step 5: Solve for x
    x = 6,503,620,166.88/128,511.32
  6. Step 6: Final answer
    x = 50,607.37

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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.