Home / 141.72-195.56-86.46

Finding the Fourth Proportional to 141.72, 195.56 and 86.46

Calculator

Solution

The fourth proportional to 141.72, 195.56 and 86.46 is: 119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.72 : 195.56 = 86.46 : x
  2. Step 2: Convert to fraction form
    141.72/195.56 = 86.46/x
  3. Step 3: Cross multiply
    141.72x = 195.56 × 86.46
  4. Step 4: Simplify right side
    141.72x = 16,907.69
  5. Step 5: Solve for x
    x = 16,907.69/141.72
  6. Step 6: Final answer
    x = 119.30

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.