Home / 100,997.61-139,370.43-55,673.25

Finding the Fourth Proportional to 100,997.61, 139,370.43 and 55,673.25

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Solution

The fourth proportional to 100,997.61, 139,370.43 and 55,673.25 is: 76,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,997.61 : 139,370.43 = 55,673.25 : x
  2. Step 2: Convert to fraction form
    100,997.61/139,370.43 = 55,673.25/x
  3. Step 3: Cross multiply
    100,997.61x = 139,370.43 × 55,673.25
  4. Step 4: Simplify right side
    100,997.61x = 7,759,204,792.00
  5. Step 5: Solve for x
    x = 7,759,204,792.00/100,997.61
  6. Step 6: Final answer
    x = 76,825.63

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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.