Home / 85,987-132,869

Finding the Third Proportional to 85,987 and 132,869

Calculator

Solution

The third proportional to 85,987 and 132,869 is: 205,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,987 : 132,869 = 132,869 : x
  2. Step 2: Convert to fraction form
    85,987/132,869 = 132,869/x
  3. Step 3: Cross multiply
    85,987x = 132,869 × 132,869
  4. Step 4: Simplify right side
    85,987x = 17,654,171,161
  5. Step 5: Solve for x
    x = 17,654,171,161/85,987
  6. Step 6: Final answer
    x = 205,312.10

Related Problems

Find third proportional to 42,993.50 and 66,434.50
Half scale
Find third proportional to 171,974 and 265,738
Double scale
Find third proportional to 85,989 and 132,872
Similar ratio
Find third proportional to 128,980.50 and 199,303.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.