Home / 110.09-151.92-71.28

Finding the Fourth Proportional to 110.09, 151.92 and 71.28

Calculator

Solution

The fourth proportional to 110.09, 151.92 and 71.28 is: 98.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.09 : 151.92 = 71.28 : x
  2. Step 2: Convert to fraction form
    110.09/151.92 = 71.28/x
  3. Step 3: Cross multiply
    110.09x = 151.92 × 71.28
  4. Step 4: Simplify right side
    110.09x = 10,828.48
  5. Step 5: Solve for x
    x = 10,828.48/110.09
  6. Step 6: Final answer
    x = 98.36

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.