Home / 113.25-169.81-39.11

Finding the Fourth Proportional to 113.25, 169.81 and 39.11

Calculator

Solution

The fourth proportional to 113.25, 169.81 and 39.11 is: 58.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.25 : 169.81 = 39.11 : x
  2. Step 2: Convert to fraction form
    113.25/169.81 = 39.11/x
  3. Step 3: Cross multiply
    113.25x = 169.81 × 39.11
  4. Step 4: Simplify right side
    113.25x = 6,640.42
  5. Step 5: Solve for x
    x = 6,640.42/113.25
  6. Step 6: Final answer
    x = 58.64

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.