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Finding the Fourth Proportional to 139,995.46, 209,994 and 34,814.44

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Solution

The fourth proportional to 139,995.46, 209,994 and 34,814.44 is: 52,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,995.46 : 209,994 = 34,814.44 : x
  2. Step 2: Convert to fraction form
    139,995.46/209,994 = 34,814.44/x
  3. Step 3: Cross multiply
    139,995.46x = 209,994 × 34,814.44
  4. Step 4: Simplify right side
    139,995.46x = 7,310,823,513.36
  5. Step 5: Solve for x
    x = 7,310,823,513.36/139,995.46
  6. Step 6: Final answer
    x = 52,221.86

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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.