Home / 45-85.13

Finding the Third Proportional to 45 and 85.13

Calculator

Solution

The third proportional to 45 and 85.13 is: 161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45 : 85.13 = 85.13 : x
  2. Step 2: Convert to fraction form
    45/85.13 = 85.13/x
  3. Step 3: Cross multiply
    45x = 85.13 × 85.13
  4. Step 4: Simplify right side
    45x = 7,246.27
  5. Step 5: Solve for x
    x = 7,246.27/45
  6. Step 6: Final answer
    x = 161.03

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.