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Finding the Fourth Proportional to 115,893.40, 173,621.40 and 108,020.20

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Solution

The fourth proportional to 115,893.40, 173,621.40 and 108,020.20 is: 161,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,893.40 : 173,621.40 = 108,020.20 : x
  2. Step 2: Convert to fraction form
    115,893.40/173,621.40 = 108,020.20/x
  3. Step 3: Cross multiply
    115,893.40x = 173,621.40 × 108,020.20
  4. Step 4: Simplify right side
    115,893.40x = 18,754,618,352.28
  5. Step 5: Solve for x
    x = 18,754,618,352.28/115,893.40
  6. Step 6: Final answer
    x = 161,826.46

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