Home / 114.27-157.49-81.51

Finding the Fourth Proportional to 114.27, 157.49 and 81.51

Calculator

Solution

The fourth proportional to 114.27, 157.49 and 81.51 is: 112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.27 : 157.49 = 81.51 : x
  2. Step 2: Convert to fraction form
    114.27/157.49 = 81.51/x
  3. Step 3: Cross multiply
    114.27x = 157.49 × 81.51
  4. Step 4: Simplify right side
    114.27x = 12,836.60
  5. Step 5: Solve for x
    x = 12,836.60/114.27
  6. Step 6: Final answer
    x = 112.34

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.