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Finding the Fourth Proportional to 131,354.62, 181,269.58 and 74,766

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Solution

The fourth proportional to 131,354.62, 181,269.58 and 74,766 is: 103,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,354.62 : 181,269.58 = 74,766 : x
  2. Step 2: Convert to fraction form
    131,354.62/181,269.58 = 74,766/x
  3. Step 3: Cross multiply
    131,354.62x = 181,269.58 × 74,766
  4. Step 4: Simplify right side
    131,354.62x = 13,552,801,418.28
  5. Step 5: Solve for x
    x = 13,552,801,418.28/131,354.62
  6. Step 6: Final answer
    x = 103,177.20

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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.