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Finding the Fourth Proportional to 139,481.72, 209,120.03 and 44,657.04

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Solution

The fourth proportional to 139,481.72, 209,120.03 and 44,657.04 is: 66,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,481.72 : 209,120.03 = 44,657.04 : x
  2. Step 2: Convert to fraction form
    139,481.72/209,120.03 = 44,657.04/x
  3. Step 3: Cross multiply
    139,481.72x = 209,120.03 × 44,657.04
  4. Step 4: Simplify right side
    139,481.72x = 9,338,681,544.51
  5. Step 5: Solve for x
    x = 9,338,681,544.51/139,481.72
  6. Step 6: Final answer
    x = 66,952.73

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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.