Home / 192,650.40-288,975.60-129,664.80

Finding the Fourth Proportional to 192,650.40, 288,975.60 and 129,664.80

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Solution

The fourth proportional to 192,650.40, 288,975.60 and 129,664.80 is: 194,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,650.40 : 288,975.60 = 129,664.80 : x
  2. Step 2: Convert to fraction form
    192,650.40/288,975.60 = 129,664.80/x
  3. Step 3: Cross multiply
    192,650.40x = 288,975.60 × 129,664.80
  4. Step 4: Simplify right side
    192,650.40x = 37,469,963,378.88
  5. Step 5: Solve for x
    x = 37,469,963,378.88/192,650.40
  6. Step 6: Final answer
    x = 194,497.20

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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.