Home / 112.20-168.22-58.05

Finding the Fourth Proportional to 112.20, 168.22 and 58.05

Calculator

Solution

The fourth proportional to 112.20, 168.22 and 58.05 is: 87.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.20 : 168.22 = 58.05 : x
  2. Step 2: Convert to fraction form
    112.20/168.22 = 58.05/x
  3. Step 3: Cross multiply
    112.20x = 168.22 × 58.05
  4. Step 4: Simplify right side
    112.20x = 9,765.17
  5. Step 5: Solve for x
    x = 9,765.17/112.20
  6. Step 6: Final answer
    x = 87.03

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.