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Finding the Fourth Proportional to 149,539.54, 206,363.82 and 82,471.54

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Solution

The fourth proportional to 149,539.54, 206,363.82 and 82,471.54 is: 113,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,539.54 : 206,363.82 = 82,471.54 : x
  2. Step 2: Convert to fraction form
    149,539.54/206,363.82 = 82,471.54/x
  3. Step 3: Cross multiply
    149,539.54x = 206,363.82 × 82,471.54
  4. Step 4: Simplify right side
    149,539.54x = 17,019,142,035.68
  5. Step 5: Solve for x
    x = 17,019,142,035.68/149,539.54
  6. Step 6: Final answer
    x = 113,810.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.