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Finding the Fourth Proportional to 143,601.58, 198,164.83 and 79,938.01

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Solution

The fourth proportional to 143,601.58, 198,164.83 and 79,938.01 is: 110,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,601.58 : 198,164.83 = 79,938.01 : x
  2. Step 2: Convert to fraction form
    143,601.58/198,164.83 = 79,938.01/x
  3. Step 3: Cross multiply
    143,601.58x = 198,164.83 × 79,938.01
  4. Step 4: Simplify right side
    143,601.58x = 15,840,902,162.19
  5. Step 5: Solve for x
    x = 15,840,902,162.19/143,601.58
  6. Step 6: Final answer
    x = 110,311.48

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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.