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Finding the Fourth Proportional to 143,757.72, 198,377.10 and 83,323.62

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Solution

The fourth proportional to 143,757.72, 198,377.10 and 83,323.62 is: 114,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,757.72 : 198,377.10 = 83,323.62 : x
  2. Step 2: Convert to fraction form
    143,757.72/198,377.10 = 83,323.62/x
  3. Step 3: Cross multiply
    143,757.72x = 198,377.10 × 83,323.62
  4. Step 4: Simplify right side
    143,757.72x = 16,529,498,097.10
  5. Step 5: Solve for x
    x = 16,529,498,097.10/143,757.72
  6. Step 6: Final answer
    x = 114,981.64

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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.