Home / 71,505-136,503

Finding the Third Proportional to 71,505 and 136,503

Calculator

Solution

The third proportional to 71,505 and 136,503 is: 260,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,505 : 136,503 = 136,503 : x
  2. Step 2: Convert to fraction form
    71,505/136,503 = 136,503/x
  3. Step 3: Cross multiply
    71,505x = 136,503 × 136,503
  4. Step 4: Simplify right side
    71,505x = 18,633,069,009
  5. Step 5: Solve for x
    x = 18,633,069,009/71,505
  6. Step 6: Final answer
    x = 260,584.14

Related Problems

Find third proportional to 35,752.50 and 68,251.50
Half scale
Find third proportional to 143,010 and 273,006
Double scale
Find third proportional to 71,507 and 136,507
Similar ratio
Find third proportional to 107,257.50 and 204,754.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.