Home / 187.68-281.58-79.44

Finding the Fourth Proportional to 187.68, 281.58 and 79.44

Calculator

Solution

The fourth proportional to 187.68, 281.58 and 79.44 is: 119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.68 : 281.58 = 79.44 : x
  2. Step 2: Convert to fraction form
    187.68/281.58 = 79.44/x
  3. Step 3: Cross multiply
    187.68x = 281.58 × 79.44
  4. Step 4: Simplify right side
    187.68x = 22,368.72
  5. Step 5: Solve for x
    x = 22,368.72/187.68
  6. Step 6: Final answer
    x = 119.19

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.