Home / 163.45-225.80-130.66

Finding the Fourth Proportional to 163.45, 225.80 and 130.66

Calculator

Solution

The fourth proportional to 163.45, 225.80 and 130.66 is: 180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.45 : 225.80 = 130.66 : x
  2. Step 2: Convert to fraction form
    163.45/225.80 = 130.66/x
  3. Step 3: Cross multiply
    163.45x = 225.80 × 130.66
  4. Step 4: Simplify right side
    163.45x = 29,503.03
  5. Step 5: Solve for x
    x = 29,503.03/163.45
  6. Step 6: Final answer
    x = 180.50

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.