Home / 63,678-136,749

Finding the Third Proportional to 63,678 and 136,749

Calculator

Solution

The third proportional to 63,678 and 136,749 is: 293,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678 : 136,749 = 136,749 : x
  2. Step 2: Convert to fraction form
    63,678/136,749 = 136,749/x
  3. Step 3: Cross multiply
    63,678x = 136,749 × 136,749
  4. Step 4: Simplify right side
    63,678x = 18,700,289,001
  5. Step 5: Solve for x
    x = 18,700,289,001/63,678
  6. Step 6: Final answer
    x = 293,669.54

Related Problems

Find third proportional to 31,839 and 68,374.50
Half scale
Find third proportional to 127,356 and 273,498
Double scale
Find third proportional to 63,680 and 136,753
Similar ratio
Find third proportional to 95,517 and 205,123.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.