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Finding the Fourth Proportional to 159,960.21, 239,851 and 100,668.81

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Solution

The fourth proportional to 159,960.21, 239,851 and 100,668.81 is: 150,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,960.21 : 239,851 = 100,668.81 : x
  2. Step 2: Convert to fraction form
    159,960.21/239,851 = 100,668.81/x
  3. Step 3: Cross multiply
    159,960.21x = 239,851 × 100,668.81
  4. Step 4: Simplify right side
    159,960.21x = 24,145,514,747.31
  5. Step 5: Solve for x
    x = 24,145,514,747.31/159,960.21
  6. Step 6: Final answer
    x = 150,947.01

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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.