Home / 163.27-225.31-89.58

Finding the Fourth Proportional to 163.27, 225.31 and 89.58

Calculator

Solution

The fourth proportional to 163.27, 225.31 and 89.58 is: 123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.27 : 225.31 = 89.58 : x
  2. Step 2: Convert to fraction form
    163.27/225.31 = 89.58/x
  3. Step 3: Cross multiply
    163.27x = 225.31 × 89.58
  4. Step 4: Simplify right side
    163.27x = 20,183.17
  5. Step 5: Solve for x
    x = 20,183.17/163.27
  6. Step 6: Final answer
    x = 123.62

Related Problems

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.