Home / 128,351.19-192,532.25-39,602.73

Finding the Fourth Proportional to 128,351.19, 192,532.25 and 39,602.73

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Solution

The fourth proportional to 128,351.19, 192,532.25 and 39,602.73 is: 59,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,351.19 : 192,532.25 = 39,602.73 : x
  2. Step 2: Convert to fraction form
    128,351.19/192,532.25 = 39,602.73/x
  3. Step 3: Cross multiply
    128,351.19x = 192,532.25 × 39,602.73
  4. Step 4: Simplify right side
    128,351.19x = 7,624,802,713.04
  5. Step 5: Solve for x
    x = 7,624,802,713.04/128,351.19
  6. Step 6: Final answer
    x = 59,405.78

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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.