Home / 100,844.76-139,169.12-55,524.96

Finding the Fourth Proportional to 100,844.76, 139,169.12 and 55,524.96

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Solution

The fourth proportional to 100,844.76, 139,169.12 and 55,524.96 is: 76,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,844.76 : 139,169.12 = 55,524.96 : x
  2. Step 2: Convert to fraction form
    100,844.76/139,169.12 = 55,524.96/x
  3. Step 3: Cross multiply
    100,844.76x = 139,169.12 × 55,524.96
  4. Step 4: Simplify right side
    100,844.76x = 7,727,359,821.24
  5. Step 5: Solve for x
    x = 7,727,359,821.24/100,844.76
  6. Step 6: Final answer
    x = 76,626.29

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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.