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Finding the Fourth Proportional to 107,959.83, 161,900.87 and 45,635.19

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Solution

The fourth proportional to 107,959.83, 161,900.87 and 45,635.19 is: 68,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,959.83 : 161,900.87 = 45,635.19 : x
  2. Step 2: Convert to fraction form
    107,959.83/161,900.87 = 45,635.19/x
  3. Step 3: Cross multiply
    107,959.83x = 161,900.87 × 45,635.19
  4. Step 4: Simplify right side
    107,959.83x = 7,388,376,735.44
  5. Step 5: Solve for x
    x = 7,388,376,735.44/107,959.83
  6. Step 6: Final answer
    x = 68,436.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.