Home / 135.05-202.66-66.64

Finding the Fourth Proportional to 135.05, 202.66 and 66.64

Calculator

Solution

The fourth proportional to 135.05, 202.66 and 66.64 is: 99.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.05 : 202.66 = 66.64 : x
  2. Step 2: Convert to fraction form
    135.05/202.66 = 66.64/x
  3. Step 3: Cross multiply
    135.05x = 202.66 × 66.64
  4. Step 4: Simplify right side
    135.05x = 13,504.16
  5. Step 5: Solve for x
    x = 13,504.16/135.05
  6. Step 6: Final answer
    x = 99.99

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.