Home / 128,499.36-192,763.44-35,005.92

Finding the Fourth Proportional to 128,499.36, 192,763.44 and 35,005.92

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Solution

The fourth proportional to 128,499.36, 192,763.44 and 35,005.92 is: 52,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,499.36 : 192,763.44 = 35,005.92 : x
  2. Step 2: Convert to fraction form
    128,499.36/192,763.44 = 35,005.92/x
  3. Step 3: Cross multiply
    128,499.36x = 192,763.44 × 35,005.92
  4. Step 4: Simplify right side
    128,499.36x = 6,747,861,559.56
  5. Step 5: Solve for x
    x = 6,747,861,559.56/128,499.36
  6. Step 6: Final answer
    x = 52,512.80

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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.