Home / 89,907-129,508

Finding the Third Proportional to 89,907 and 129,508

Calculator

Solution

The third proportional to 89,907 and 129,508 is: 186,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,907 : 129,508 = 129,508 : x
  2. Step 2: Convert to fraction form
    89,907/129,508 = 129,508/x
  3. Step 3: Cross multiply
    89,907x = 129,508 × 129,508
  4. Step 4: Simplify right side
    89,907x = 16,772,322,064
  5. Step 5: Solve for x
    x = 16,772,322,064/89,907
  6. Step 6: Final answer
    x = 186,551.90

Related Problems

Find third proportional to 44,953.50 and 64,754
Half scale
Find third proportional to 179,814 and 259,016
Double scale
Find third proportional to 89,909 and 129,511
Similar ratio
Find third proportional to 134,860.50 and 194,262
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.