Home / 266,226.36-399,106.32-100,131

Finding the Fourth Proportional to 266,226.36, 399,106.32 and 100,131

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Solution

The fourth proportional to 266,226.36, 399,106.32 and 100,131 is: 150,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,226.36 : 399,106.32 = 100,131 : x
  2. Step 2: Convert to fraction form
    266,226.36/399,106.32 = 100,131/x
  3. Step 3: Cross multiply
    266,226.36x = 399,106.32 × 100,131
  4. Step 4: Simplify right side
    266,226.36x = 39,962,914,927.92
  5. Step 5: Solve for x
    x = 39,962,914,927.92/266,226.36
  6. Step 6: Final answer
    x = 150,108.78

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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.