Home / 130.62-195.86-90.06

Finding the Fourth Proportional to 130.62, 195.86 and 90.06

Calculator

Solution

The fourth proportional to 130.62, 195.86 and 90.06 is: 135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.62 : 195.86 = 90.06 : x
  2. Step 2: Convert to fraction form
    130.62/195.86 = 90.06/x
  3. Step 3: Cross multiply
    130.62x = 195.86 × 90.06
  4. Step 4: Simplify right side
    130.62x = 17,638.70
  5. Step 5: Solve for x
    x = 17,638.70/130.62
  6. Step 6: Final answer
    x = 135.04

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.