Home / 165.09-227.83-91.41

Finding the Fourth Proportional to 165.09, 227.83 and 91.41

Calculator

Solution

The fourth proportional to 165.09, 227.83 and 91.41 is: 126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.09 : 227.83 = 91.41 : x
  2. Step 2: Convert to fraction form
    165.09/227.83 = 91.41/x
  3. Step 3: Cross multiply
    165.09x = 227.83 × 91.41
  4. Step 4: Simplify right side
    165.09x = 20,826.51
  5. Step 5: Solve for x
    x = 20,826.51/165.09
  6. Step 6: Final answer
    x = 126.15

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.