Home / 85,798-129,328

Finding the Third Proportional to 85,798 and 129,328

Calculator

Solution

The third proportional to 85,798 and 129,328 is: 194,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,798 : 129,328 = 129,328 : x
  2. Step 2: Convert to fraction form
    85,798/129,328 = 129,328/x
  3. Step 3: Cross multiply
    85,798x = 129,328 × 129,328
  4. Step 4: Simplify right side
    85,798x = 16,725,731,584
  5. Step 5: Solve for x
    x = 16,725,731,584/85,798
  6. Step 6: Final answer
    x = 194,943.14

Related Problems

Find third proportional to 42,899 and 64,664
Half scale
Find third proportional to 171,596 and 258,656
Double scale
Find third proportional to 85,800 and 129,331
Similar ratio
Find third proportional to 128,697 and 193,992
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.