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Finding the Fourth Proportional to 154,086.80, 230,902.80 and 69,872.72

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Solution

The fourth proportional to 154,086.80, 230,902.80 and 69,872.72 is: 104,705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,086.80 : 230,902.80 = 69,872.72 : x
  2. Step 2: Convert to fraction form
    154,086.80/230,902.80 = 69,872.72/x
  3. Step 3: Cross multiply
    154,086.80x = 230,902.80 × 69,872.72
  4. Step 4: Simplify right side
    154,086.80x = 16,133,806,691.62
  5. Step 5: Solve for x
    x = 16,133,806,691.62/154,086.80
  6. Step 6: Final answer
    x = 104,705.96

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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.