Home / 89,034-138,657

Finding the Third Proportional to 89,034 and 138,657

Calculator

Solution

The third proportional to 89,034 and 138,657 is: 215,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,034 : 138,657 = 138,657 : x
  2. Step 2: Convert to fraction form
    89,034/138,657 = 138,657/x
  3. Step 3: Cross multiply
    89,034x = 138,657 × 138,657
  4. Step 4: Simplify right side
    89,034x = 19,225,763,649
  5. Step 5: Solve for x
    x = 19,225,763,649/89,034
  6. Step 6: Final answer
    x = 215,937.32

Related Problems

Find third proportional to 44,517 and 69,328.50
Half scale
Find third proportional to 178,068 and 277,314
Double scale
Find third proportional to 89,036 and 138,660
Similar ratio
Find third proportional to 133,551 and 207,985.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.