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Finding the Fourth Proportional to 139,360.32, 209,309.40 and 119,414.88

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Solution

The fourth proportional to 139,360.32, 209,309.40 and 119,414.88 is: 179,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,360.32 : 209,309.40 = 119,414.88 : x
  2. Step 2: Convert to fraction form
    139,360.32/209,309.40 = 119,414.88/x
  3. Step 3: Cross multiply
    139,360.32x = 209,309.40 × 119,414.88
  4. Step 4: Simplify right side
    139,360.32x = 24,994,656,883.87
  5. Step 5: Solve for x
    x = 24,994,656,883.87/139,360.32
  6. Step 6: Final answer
    x = 179,352.75

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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.