Home / 78,316-126,100

Finding the Third Proportional to 78,316 and 126,100

Calculator

Solution

The third proportional to 78,316 and 126,100 is: 203,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,316 : 126,100 = 126,100 : x
  2. Step 2: Convert to fraction form
    78,316/126,100 = 126,100/x
  3. Step 3: Cross multiply
    78,316x = 126,100 × 126,100
  4. Step 4: Simplify right side
    78,316x = 15,901,210,000
  5. Step 5: Solve for x
    x = 15,901,210,000/78,316
  6. Step 6: Final answer
    x = 203,039.10

Related Problems

Find third proportional to 39,158 and 63,050
Half scale
Find third proportional to 156,632 and 252,200
Double scale
Find third proportional to 78,318 and 126,103
Similar ratio
Find third proportional to 117,474 and 189,150
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.