Home / 127.28-190.93-41.78

Finding the Fourth Proportional to 127.28, 190.93 and 41.78

Calculator

Solution

The fourth proportional to 127.28, 190.93 and 41.78 is: 62.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.28 : 190.93 = 41.78 : x
  2. Step 2: Convert to fraction form
    127.28/190.93 = 41.78/x
  3. Step 3: Cross multiply
    127.28x = 190.93 × 41.78
  4. Step 4: Simplify right side
    127.28x = 7,977.06
  5. Step 5: Solve for x
    x = 7,977.06/127.28
  6. Step 6: Final answer
    x = 62.67

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.