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Finding the Fourth Proportional to 104,504.78, 156,755 and 25,619.42

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Solution

The fourth proportional to 104,504.78, 156,755 and 25,619.42 is: 38,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,504.78 : 156,755 = 25,619.42 : x
  2. Step 2: Convert to fraction form
    104,504.78/156,755 = 25,619.42/x
  3. Step 3: Cross multiply
    104,504.78x = 156,755 × 25,619.42
  4. Step 4: Simplify right side
    104,504.78x = 4,015,972,182.10
  5. Step 5: Solve for x
    x = 4,015,972,182.10/104,504.78
  6. Step 6: Final answer
    x = 38,428.60

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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.