Home / 129,821.20-194,623.80-54,998.80

Finding the Fourth Proportional to 129,821.20, 194,623.80 and 54,998.80

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Solution

The fourth proportional to 129,821.20, 194,623.80 and 54,998.80 is: 82,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,821.20 : 194,623.80 = 54,998.80 : x
  2. Step 2: Convert to fraction form
    129,821.20/194,623.80 = 54,998.80/x
  3. Step 3: Cross multiply
    129,821.20x = 194,623.80 × 54,998.80
  4. Step 4: Simplify right side
    129,821.20x = 10,704,075,451.44
  5. Step 5: Solve for x
    x = 10,704,075,451.44/129,821.20
  6. Step 6: Final answer
    x = 82,452.45

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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.