Home / 101.69-152.49-40.80

Finding the Fourth Proportional to 101.69, 152.49 and 40.80

Calculator

Solution

The fourth proportional to 101.69, 152.49 and 40.80 is: 61.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.69 : 152.49 = 40.80 : x
  2. Step 2: Convert to fraction form
    101.69/152.49 = 40.80/x
  3. Step 3: Cross multiply
    101.69x = 152.49 × 40.80
  4. Step 4: Simplify right side
    101.69x = 6,221.59
  5. Step 5: Solve for x
    x = 6,221.59/101.69
  6. Step 6: Final answer
    x = 61.18

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.