Home / 153.96-230.84-76.85

Finding the Fourth Proportional to 153.96, 230.84 and 76.85

Calculator

Solution

The fourth proportional to 153.96, 230.84 and 76.85 is: 115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.96 : 230.84 = 76.85 : x
  2. Step 2: Convert to fraction form
    153.96/230.84 = 76.85/x
  3. Step 3: Cross multiply
    153.96x = 230.84 × 76.85
  4. Step 4: Simplify right side
    153.96x = 17,738.52
  5. Step 5: Solve for x
    x = 17,738.52/153.96
  6. Step 6: Final answer
    x = 115.22

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.