Home / 99,684.11-137,563.66-54,361.97

Finding the Fourth Proportional to 99,684.11, 137,563.66 and 54,361.97

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Solution

The fourth proportional to 99,684.11, 137,563.66 and 54,361.97 is: 75,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.11 : 137,563.66 = 54,361.97 : x
  2. Step 2: Convert to fraction form
    99,684.11/137,563.66 = 54,361.97/x
  3. Step 3: Cross multiply
    99,684.11x = 137,563.66 × 54,361.97
  4. Step 4: Simplify right side
    99,684.11x = 7,478,231,766.01
  5. Step 5: Solve for x
    x = 7,478,231,766.01/99,684.11
  6. Step 6: Final answer
    x = 75,019.30

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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.