Home / 89,316-135,128

Finding the Third Proportional to 89,316 and 135,128

Calculator

Solution

The third proportional to 89,316 and 135,128 is: 204,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,316 : 135,128 = 135,128 : x
  2. Step 2: Convert to fraction form
    89,316/135,128 = 135,128/x
  3. Step 3: Cross multiply
    89,316x = 135,128 × 135,128
  4. Step 4: Simplify right side
    89,316x = 18,259,576,384
  5. Step 5: Solve for x
    x = 18,259,576,384/89,316
  6. Step 6: Final answer
    x = 204,437.91

Related Problems

Find third proportional to 44,658 and 67,564
Half scale
Find third proportional to 178,632 and 270,256
Double scale
Find third proportional to 89,318 and 135,131
Similar ratio
Find third proportional to 133,974 and 202,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.