Home / 103,872.20-155,786.70-44,709.80

Finding the Fourth Proportional to 103,872.20, 155,786.70 and 44,709.80

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Solution

The fourth proportional to 103,872.20, 155,786.70 and 44,709.80 is: 67,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.20 : 155,786.70 = 44,709.80 : x
  2. Step 2: Convert to fraction form
    103,872.20/155,786.70 = 44,709.80/x
  3. Step 3: Cross multiply
    103,872.20x = 155,786.70 × 44,709.80
  4. Step 4: Simplify right side
    103,872.20x = 6,965,192,199.66
  5. Step 5: Solve for x
    x = 6,965,192,199.66/103,872.20
  6. Step 6: Final answer
    x = 67,055.40

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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.