Home / 128,236.14-192,365.14-33,478.90

Finding the Fourth Proportional to 128,236.14, 192,365.14 and 33,478.90

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Solution

The fourth proportional to 128,236.14, 192,365.14 and 33,478.90 is: 50,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,236.14 : 192,365.14 = 33,478.90 : x
  2. Step 2: Convert to fraction form
    128,236.14/192,365.14 = 33,478.90/x
  3. Step 3: Cross multiply
    128,236.14x = 192,365.14 × 33,478.90
  4. Step 4: Simplify right side
    128,236.14x = 6,440,173,285.55
  5. Step 5: Solve for x
    x = 6,440,173,285.55/128,236.14
  6. Step 6: Final answer
    x = 50,221.20

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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.