Home / 143,861.20-198,528.71-80,197.63

Finding the Fourth Proportional to 143,861.20, 198,528.71 and 80,197.63

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Solution

The fourth proportional to 143,861.20, 198,528.71 and 80,197.63 is: 110,672.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,861.20 : 198,528.71 = 80,197.63 : x
  2. Step 2: Convert to fraction form
    143,861.20/198,528.71 = 80,197.63/x
  3. Step 3: Cross multiply
    143,861.20x = 198,528.71 × 80,197.63
  4. Step 4: Simplify right side
    143,861.20x = 15,921,531,131.65
  5. Step 5: Solve for x
    x = 15,921,531,131.65/143,861.20
  6. Step 6: Final answer
    x = 110,672.87

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