Home / 100,996.48-139,375.12-55,675.22

Finding the Fourth Proportional to 100,996.48, 139,375.12 and 55,675.22

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Solution

The fourth proportional to 100,996.48, 139,375.12 and 55,675.22 is: 76,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,996.48 : 139,375.12 = 55,675.22 : x
  2. Step 2: Convert to fraction form
    100,996.48/139,375.12 = 55,675.22/x
  3. Step 3: Cross multiply
    100,996.48x = 139,375.12 × 55,675.22
  4. Step 4: Simplify right side
    100,996.48x = 7,759,740,468.53
  5. Step 5: Solve for x
    x = 7,759,740,468.53/100,996.48
  6. Step 6: Final answer
    x = 76,831.79

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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.