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Finding the Fourth Proportional to 147,059.65, 202,942.30 and 79,991.65

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Solution

The fourth proportional to 147,059.65, 202,942.30 and 79,991.65 is: 110,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,059.65 : 202,942.30 = 79,991.65 : x
  2. Step 2: Convert to fraction form
    147,059.65/202,942.30 = 79,991.65/x
  3. Step 3: Cross multiply
    147,059.65x = 202,942.30 × 79,991.65
  4. Step 4: Simplify right side
    147,059.65x = 16,233,689,431.80
  5. Step 5: Solve for x
    x = 16,233,689,431.80/147,059.65
  6. Step 6: Final answer
    x = 110,388.47

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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.