Home / 163.71-245.46-72.43

Finding the Fourth Proportional to 163.71, 245.46 and 72.43

Calculator

Solution

The fourth proportional to 163.71, 245.46 and 72.43 is: 108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.71 : 245.46 = 72.43 : x
  2. Step 2: Convert to fraction form
    163.71/245.46 = 72.43/x
  3. Step 3: Cross multiply
    163.71x = 245.46 × 72.43
  4. Step 4: Simplify right side
    163.71x = 17,778.67
  5. Step 5: Solve for x
    x = 17,778.67/163.71
  6. Step 6: Final answer
    x = 108.60

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.