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Finding the Fourth Proportional to 103,694.30, 155,497.44 and 43,749.65

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Solution

The fourth proportional to 103,694.30, 155,497.44 and 43,749.65 is: 65,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,694.30 : 155,497.44 = 43,749.65 : x
  2. Step 2: Convert to fraction form
    103,694.30/155,497.44 = 43,749.65/x
  3. Step 3: Cross multiply
    103,694.30x = 155,497.44 × 43,749.65
  4. Step 4: Simplify right side
    103,694.30x = 6,802,958,575.90
  5. Step 5: Solve for x
    x = 6,802,958,575.90/103,694.30
  6. Step 6: Final answer
    x = 65,605.91

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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.