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Finding the Fourth Proportional to 150,363.80, 207,450.96 and 85,786.65

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Solution

The fourth proportional to 150,363.80, 207,450.96 and 85,786.65 is: 118,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,363.80 : 207,450.96 = 85,786.65 : x
  2. Step 2: Convert to fraction form
    150,363.80/207,450.96 = 85,786.65/x
  3. Step 3: Cross multiply
    150,363.80x = 207,450.96 × 85,786.65
  4. Step 4: Simplify right side
    150,363.80x = 17,796,522,897.68
  5. Step 5: Solve for x
    x = 17,796,522,897.68/150,363.80
  6. Step 6: Final answer
    x = 118,356.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.