Home / 118.87-178.24-105.37

Finding the Fourth Proportional to 118.87, 178.24 and 105.37

Calculator

Solution

The fourth proportional to 118.87, 178.24 and 105.37 is: 157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.87 : 178.24 = 105.37 : x
  2. Step 2: Convert to fraction form
    118.87/178.24 = 105.37/x
  3. Step 3: Cross multiply
    118.87x = 178.24 × 105.37
  4. Step 4: Simplify right side
    118.87x = 18,780.62
  5. Step 5: Solve for x
    x = 18,780.62/118.87
  6. Step 6: Final answer
    x = 157.99

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.