Home / 111.55-167.19-63.31

Finding the Fourth Proportional to 111.55, 167.19 and 63.31

Calculator

Solution

The fourth proportional to 111.55, 167.19 and 63.31 is: 94.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.55 : 167.19 = 63.31 : x
  2. Step 2: Convert to fraction form
    111.55/167.19 = 63.31/x
  3. Step 3: Cross multiply
    111.55x = 167.19 × 63.31
  4. Step 4: Simplify right side
    111.55x = 10,584.80
  5. Step 5: Solve for x
    x = 10,584.80/111.55
  6. Step 6: Final answer
    x = 94.89

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.