Home / 168.09-252.14-54.09

Finding the Fourth Proportional to 168.09, 252.14 and 54.09

Calculator

Solution

The fourth proportional to 168.09, 252.14 and 54.09 is: 81.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.09 : 252.14 = 54.09 : x
  2. Step 2: Convert to fraction form
    168.09/252.14 = 54.09/x
  3. Step 3: Cross multiply
    168.09x = 252.14 × 54.09
  4. Step 4: Simplify right side
    168.09x = 13,639.23
  5. Step 5: Solve for x
    x = 13,639.23/168.09
  6. Step 6: Final answer
    x = 81.14

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.