Home / 100,922.22-139,283.61-55,604.85

Finding the Fourth Proportional to 100,922.22, 139,283.61 and 55,604.85

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Solution

The fourth proportional to 100,922.22, 139,283.61 and 55,604.85 is: 76,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,922.22 : 139,283.61 = 55,604.85 : x
  2. Step 2: Convert to fraction form
    100,922.22/139,283.61 = 55,604.85/x
  3. Step 3: Cross multiply
    100,922.22x = 139,283.61 × 55,604.85
  4. Step 4: Simplify right side
    100,922.22x = 7,744,844,241.51
  5. Step 5: Solve for x
    x = 7,744,844,241.51/100,922.22
  6. Step 6: Final answer
    x = 76,740.72

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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.