Home / 129,923.20-194,957.70-55,030.60

Finding the Fourth Proportional to 129,923.20, 194,957.70 and 55,030.60

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Solution

The fourth proportional to 129,923.20, 194,957.70 and 55,030.60 is: 82,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923.20 : 194,957.70 = 55,030.60 : x
  2. Step 2: Convert to fraction form
    129,923.20/194,957.70 = 55,030.60/x
  3. Step 3: Cross multiply
    129,923.20x = 194,957.70 × 55,030.60
  4. Step 4: Simplify right side
    129,923.20x = 10,728,639,205.62
  5. Step 5: Solve for x
    x = 10,728,639,205.62/129,923.20
  6. Step 6: Final answer
    x = 82,576.78

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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.