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Finding the Fourth Proportional to 150,433.44, 207,619.92 and 86,758.56

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Solution

The fourth proportional to 150,433.44, 207,619.92 and 86,758.56 is: 119,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,433.44 : 207,619.92 = 86,758.56 : x
  2. Step 2: Convert to fraction form
    150,433.44/207,619.92 = 86,758.56/x
  3. Step 3: Cross multiply
    150,433.44x = 207,619.92 × 86,758.56
  4. Step 4: Simplify right side
    150,433.44x = 18,012,805,286.52
  5. Step 5: Solve for x
    x = 18,012,805,286.52/150,433.44
  6. Step 6: Final answer
    x = 119,739.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.