Home / 105,919.92-158,967.36-43,634.16

Finding the Fourth Proportional to 105,919.92, 158,967.36 and 43,634.16

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Solution

The fourth proportional to 105,919.92, 158,967.36 and 43,634.16 is: 65,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,919.92 : 158,967.36 = 43,634.16 : x
  2. Step 2: Convert to fraction form
    105,919.92/158,967.36 = 43,634.16/x
  3. Step 3: Cross multiply
    105,919.92x = 158,967.36 × 43,634.16
  4. Step 4: Simplify right side
    105,919.92x = 6,936,407,221.02
  5. Step 5: Solve for x
    x = 6,936,407,221.02/105,919.92
  6. Step 6: Final answer
    x = 65,487.28

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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.