Home / 155.33-214.31-106.31

Finding the Fourth Proportional to 155.33, 214.31 and 106.31

Calculator

Solution

The fourth proportional to 155.33, 214.31 and 106.31 is: 146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.33 : 214.31 = 106.31 : x
  2. Step 2: Convert to fraction form
    155.33/214.31 = 106.31/x
  3. Step 3: Cross multiply
    155.33x = 214.31 × 106.31
  4. Step 4: Simplify right side
    155.33x = 22,783.30
  5. Step 5: Solve for x
    x = 22,783.30/155.33
  6. Step 6: Final answer
    x = 146.68

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.