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Finding the Fourth Proportional to 100,143.83, 150,223.91 and 43,976.13

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Solution

The fourth proportional to 100,143.83, 150,223.91 and 43,976.13 is: 65,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,143.83 : 150,223.91 = 43,976.13 : x
  2. Step 2: Convert to fraction form
    100,143.83/150,223.91 = 43,976.13/x
  3. Step 3: Cross multiply
    100,143.83x = 150,223.91 × 43,976.13
  4. Step 4: Simplify right side
    100,143.83x = 6,606,265,975.39
  5. Step 5: Solve for x
    x = 6,606,265,975.39/100,143.83
  6. Step 6: Final answer
    x = 65,967.78

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1.5x scale

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.