Home / 128,534.36-192,811.26-39,797.24

Finding the Fourth Proportional to 128,534.36, 192,811.26 and 39,797.24

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Solution

The fourth proportional to 128,534.36, 192,811.26 and 39,797.24 is: 59,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,534.36 : 192,811.26 = 39,797.24 : x
  2. Step 2: Convert to fraction form
    128,534.36/192,811.26 = 39,797.24/x
  3. Step 3: Cross multiply
    128,534.36x = 192,811.26 × 39,797.24
  4. Step 4: Simplify right side
    128,534.36x = 7,673,355,988.92
  5. Step 5: Solve for x
    x = 7,673,355,988.92/128,534.36
  6. Step 6: Final answer
    x = 59,698.87

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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.