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Finding the Fourth Proportional to 143,524.80, 198,063.84 and 79,861.08

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Solution

The fourth proportional to 143,524.80, 198,063.84 and 79,861.08 is: 110,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,524.80 : 198,063.84 = 79,861.08 : x
  2. Step 2: Convert to fraction form
    143,524.80/198,063.84 = 79,861.08/x
  3. Step 3: Cross multiply
    143,524.80x = 198,063.84 × 79,861.08
  4. Step 4: Simplify right side
    143,524.80x = 15,817,592,171.35
  5. Step 5: Solve for x
    x = 15,817,592,171.35/143,524.80
  6. Step 6: Final answer
    x = 110,208.08

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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.