Home / 156.42-234.39-122.10

Finding the Fourth Proportional to 156.42, 234.39 and 122.10

Calculator

Solution

The fourth proportional to 156.42, 234.39 and 122.10 is: 182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.42 : 234.39 = 122.10 : x
  2. Step 2: Convert to fraction form
    156.42/234.39 = 122.10/x
  3. Step 3: Cross multiply
    156.42x = 234.39 × 122.10
  4. Step 4: Simplify right side
    156.42x = 28,619.02
  5. Step 5: Solve for x
    x = 28,619.02/156.42
  6. Step 6: Final answer
    x = 182.96

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.