Home / 128,344.82-192,544.67-38,394.59

Finding the Fourth Proportional to 128,344.82, 192,544.67 and 38,394.59

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Solution

The fourth proportional to 128,344.82, 192,544.67 and 38,394.59 is: 57,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,344.82 : 192,544.67 = 38,394.59 : x
  2. Step 2: Convert to fraction form
    128,344.82/192,544.67 = 38,394.59/x
  3. Step 3: Cross multiply
    128,344.82x = 192,544.67 × 38,394.59
  4. Step 4: Simplify right side
    128,344.82x = 7,392,672,794.60
  5. Step 5: Solve for x
    x = 7,392,672,794.60/128,344.82
  6. Step 6: Final answer
    x = 57,600.09

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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.