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Finding the Fourth Proportional to 143,571.34, 198,110.64 and 83,141.02

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Solution

The fourth proportional to 143,571.34, 198,110.64 and 83,141.02 is: 114,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,571.34 : 198,110.64 = 83,141.02 : x
  2. Step 2: Convert to fraction form
    143,571.34/198,110.64 = 83,141.02/x
  3. Step 3: Cross multiply
    143,571.34x = 198,110.64 × 83,141.02
  4. Step 4: Simplify right side
    143,571.34x = 16,471,120,682.45
  5. Step 5: Solve for x
    x = 16,471,120,682.45/143,571.34
  6. Step 6: Final answer
    x = 114,724.29

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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.