Home / 85,877-187,009

Finding the Third Proportional to 85,877 and 187,009

Calculator

Solution

The third proportional to 85,877 and 187,009 is: 407,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,877 : 187,009 = 187,009 : x
  2. Step 2: Convert to fraction form
    85,877/187,009 = 187,009/x
  3. Step 3: Cross multiply
    85,877x = 187,009 × 187,009
  4. Step 4: Simplify right side
    85,877x = 34,972,366,081
  5. Step 5: Solve for x
    x = 34,972,366,081/85,877
  6. Step 6: Final answer
    x = 407,237.86

Related Problems

Find third proportional to 42,938.50 and 93,504.50
Half scale
Find third proportional to 171,754 and 374,018
Double scale
Find third proportional to 85,879 and 187,013
Similar ratio
Find third proportional to 128,815.50 and 280,513.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.