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Finding the Fourth Proportional to 131,872.70, 197,809.05 and 43,104.80

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Solution

The fourth proportional to 131,872.70, 197,809.05 and 43,104.80 is: 64,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,872.70 : 197,809.05 = 43,104.80 : x
  2. Step 2: Convert to fraction form
    131,872.70/197,809.05 = 43,104.80/x
  3. Step 3: Cross multiply
    131,872.70x = 197,809.05 × 43,104.80
  4. Step 4: Simplify right side
    131,872.70x = 8,526,519,538.44
  5. Step 5: Solve for x
    x = 8,526,519,538.44/131,872.70
  6. Step 6: Final answer
    x = 64,657.20

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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.