Home / 85,432-136,480

Finding the Third Proportional to 85,432 and 136,480

Calculator

Solution

The third proportional to 85,432 and 136,480 is: 218,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,432 : 136,480 = 136,480 : x
  2. Step 2: Convert to fraction form
    85,432/136,480 = 136,480/x
  3. Step 3: Cross multiply
    85,432x = 136,480 × 136,480
  4. Step 4: Simplify right side
    85,432x = 18,626,790,400
  5. Step 5: Solve for x
    x = 18,626,790,400/85,432
  6. Step 6: Final answer
    x = 218,030.60

Related Problems

Find third proportional to 42,716 and 68,240
Half scale
Find third proportional to 170,864 and 272,960
Double scale
Find third proportional to 85,434 and 136,483
Similar ratio
Find third proportional to 128,148 and 204,720
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.