Home / 145.11-217.70-122.23

Finding the Fourth Proportional to 145.11, 217.70 and 122.23

Calculator

Solution

The fourth proportional to 145.11, 217.70 and 122.23 is: 183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.11 : 217.70 = 122.23 : x
  2. Step 2: Convert to fraction form
    145.11/217.70 = 122.23/x
  3. Step 3: Cross multiply
    145.11x = 217.70 × 122.23
  4. Step 4: Simplify right side
    145.11x = 26,609.47
  5. Step 5: Solve for x
    x = 26,609.47/145.11
  6. Step 6: Final answer
    x = 183.37

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.