Home / 159.36-239.20-123.68

Finding the Fourth Proportional to 159.36, 239.20 and 123.68

Calculator

Solution

The fourth proportional to 159.36, 239.20 and 123.68 is: 185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.36 : 239.20 = 123.68 : x
  2. Step 2: Convert to fraction form
    159.36/239.20 = 123.68/x
  3. Step 3: Cross multiply
    159.36x = 239.20 × 123.68
  4. Step 4: Simplify right side
    159.36x = 29,584.26
  5. Step 5: Solve for x
    x = 29,584.26/159.36
  6. Step 6: Final answer
    x = 185.64

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.