Home / 167.54-251.40-71.42

Finding the Fourth Proportional to 167.54, 251.40 and 71.42

Calculator

Solution

The fourth proportional to 167.54, 251.40 and 71.42 is: 107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.54 : 251.40 = 71.42 : x
  2. Step 2: Convert to fraction form
    167.54/251.40 = 71.42/x
  3. Step 3: Cross multiply
    167.54x = 251.40 × 71.42
  4. Step 4: Simplify right side
    167.54x = 17,954.99
  5. Step 5: Solve for x
    x = 17,954.99/167.54
  6. Step 6: Final answer
    x = 107.17

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.