Home / 122.70-169.36-110.54

Finding the Fourth Proportional to 122.70, 169.36 and 110.54

Calculator

Solution

The fourth proportional to 122.70, 169.36 and 110.54 is: 152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.70 : 169.36 = 110.54 : x
  2. Step 2: Convert to fraction form
    122.70/169.36 = 110.54/x
  3. Step 3: Cross multiply
    122.70x = 169.36 × 110.54
  4. Step 4: Simplify right side
    122.70x = 18,721.05
  5. Step 5: Solve for x
    x = 18,721.05/122.70
  6. Step 6: Final answer
    x = 152.58

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.