Home / 136.52-188.55-92.78

Finding the Fourth Proportional to 136.52, 188.55 and 92.78

Calculator

Solution

The fourth proportional to 136.52, 188.55 and 92.78 is: 128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.52 : 188.55 = 92.78 : x
  2. Step 2: Convert to fraction form
    136.52/188.55 = 92.78/x
  3. Step 3: Cross multiply
    136.52x = 188.55 × 92.78
  4. Step 4: Simplify right side
    136.52x = 17,493.21
  5. Step 5: Solve for x
    x = 17,493.21/136.52
  6. Step 6: Final answer
    x = 128.14

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.