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Finding the Fourth Proportional to 154,046.70, 230,960.70 and 69,847.20

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Solution

The fourth proportional to 154,046.70, 230,960.70 and 69,847.20 is: 104,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,046.70 : 230,960.70 = 69,847.20 : x
  2. Step 2: Convert to fraction form
    154,046.70/230,960.70 = 69,847.20/x
  3. Step 3: Cross multiply
    154,046.70x = 230,960.70 × 69,847.20
  4. Step 4: Simplify right side
    154,046.70x = 16,131,958,205.04
  5. Step 5: Solve for x
    x = 16,131,958,205.04/154,046.70
  6. Step 6: Final answer
    x = 104,721.22

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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.