Home / 78.94-100.03

Finding the Third Proportional to 78.94 and 100.03

Calculator

Solution

The third proportional to 78.94 and 100.03 is: 126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78.94 : 100.03 = 100.03 : x
  2. Step 2: Convert to fraction form
    78.94/100.03 = 100.03/x
  3. Step 3: Cross multiply
    78.94x = 100.03 × 100.03
  4. Step 4: Simplify right side
    78.94x = 10,006.25
  5. Step 5: Solve for x
    x = 10,006.25/78.94
  6. Step 6: Final answer
    x = 126.76

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.