Home / 75.38-101.81

Finding the Third Proportional to 75.38 and 101.81

Calculator

Solution

The third proportional to 75.38 and 101.81 is: 137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.38 : 101.81 = 101.81 : x
  2. Step 2: Convert to fraction form
    75.38/101.81 = 101.81/x
  3. Step 3: Cross multiply
    75.38x = 101.81 × 101.81
  4. Step 4: Simplify right side
    75.38x = 10,365.79
  5. Step 5: Solve for x
    x = 10,365.79/75.38
  6. Step 6: Final answer
    x = 137.52

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.