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Finding the Fourth Proportional to 150,406.43, 207,483.17 and 101,991.96

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Solution

The fourth proportional to 150,406.43, 207,483.17 and 101,991.96 is: 140,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,406.43 : 207,483.17 = 101,991.96 : x
  2. Step 2: Convert to fraction form
    150,406.43/207,483.17 = 101,991.96/x
  3. Step 3: Cross multiply
    150,406.43x = 207,483.17 × 101,991.96
  4. Step 4: Simplify right side
    150,406.43x = 21,161,614,665.35
  5. Step 5: Solve for x
    x = 21,161,614,665.35/150,406.43
  6. Step 6: Final answer
    x = 140,696.21

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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.