Home / 129,923.18-194,810.31-39,942.48

Finding the Fourth Proportional to 129,923.18, 194,810.31 and 39,942.48

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Solution

The fourth proportional to 129,923.18, 194,810.31 and 39,942.48 is: 59,890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923.18 : 194,810.31 = 39,942.48 : x
  2. Step 2: Convert to fraction form
    129,923.18/194,810.31 = 39,942.48/x
  3. Step 3: Cross multiply
    129,923.18x = 194,810.31 × 39,942.48
  4. Step 4: Simplify right side
    129,923.18x = 7,781,206,910.97
  5. Step 5: Solve for x
    x = 7,781,206,910.97/129,923.18
  6. Step 6: Final answer
    x = 59,890.83

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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.