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Finding the Fourth Proportional to 143,606, 198,180.84 and 89,873.84

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Solution

The fourth proportional to 143,606, 198,180.84 and 89,873.84 is: 124,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,606 : 198,180.84 = 89,873.84 : x
  2. Step 2: Convert to fraction form
    143,606/198,180.84 = 89,873.84/x
  3. Step 3: Cross multiply
    143,606x = 198,180.84 × 89,873.84
  4. Step 4: Simplify right side
    143,606x = 17,811,273,105.23
  5. Step 5: Solve for x
    x = 17,811,273,105.23/143,606
  6. Step 6: Final answer
    x = 124,028.75

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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.