Home / 130.32-195.68-72.66

Finding the Fourth Proportional to 130.32, 195.68 and 72.66

Calculator

Solution

The fourth proportional to 130.32, 195.68 and 72.66 is: 109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.32 : 195.68 = 72.66 : x
  2. Step 2: Convert to fraction form
    130.32/195.68 = 72.66/x
  3. Step 3: Cross multiply
    130.32x = 195.68 × 72.66
  4. Step 4: Simplify right side
    130.32x = 14,217.47
  5. Step 5: Solve for x
    x = 14,217.47/130.32
  6. Step 6: Final answer
    x = 109.09

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.