Home / 185.79-256.41-102.92

Finding the Fourth Proportional to 185.79, 256.41 and 102.92

Calculator

Solution

The fourth proportional to 185.79, 256.41 and 102.92 is: 142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.79 : 256.41 = 102.92 : x
  2. Step 2: Convert to fraction form
    185.79/256.41 = 102.92/x
  3. Step 3: Cross multiply
    185.79x = 256.41 × 102.92
  4. Step 4: Simplify right side
    185.79x = 26,388.44
  5. Step 5: Solve for x
    x = 26,388.44/185.79
  6. Step 6: Final answer
    x = 142.03

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.