Home / 85,173-128,952

Finding the Third Proportional to 85,173 and 128,952

Calculator

Solution

The third proportional to 85,173 and 128,952 is: 195,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,173 : 128,952 = 128,952 : x
  2. Step 2: Convert to fraction form
    85,173/128,952 = 128,952/x
  3. Step 3: Cross multiply
    85,173x = 128,952 × 128,952
  4. Step 4: Simplify right side
    85,173x = 16,628,618,304
  5. Step 5: Solve for x
    x = 16,628,618,304/85,173
  6. Step 6: Final answer
    x = 195,233.45

Related Problems

Find third proportional to 42,586.50 and 64,476
Half scale
Find third proportional to 170,346 and 257,904
Double scale
Find third proportional to 85,175 and 128,955
Similar ratio
Find third proportional to 127,759.50 and 193,428
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.