Home / 163.30-225.36-97.80

Finding the Fourth Proportional to 163.30, 225.36 and 97.80

Calculator

Solution

The fourth proportional to 163.30, 225.36 and 97.80 is: 134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.30 : 225.36 = 97.80 : x
  2. Step 2: Convert to fraction form
    163.30/225.36 = 97.80/x
  3. Step 3: Cross multiply
    163.30x = 225.36 × 97.80
  4. Step 4: Simplify right side
    163.30x = 22,040.21
  5. Step 5: Solve for x
    x = 22,040.21/163.30
  6. Step 6: Final answer
    x = 134.97

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.