Home / 85,428-136,038

Finding the Third Proportional to 85,428 and 136,038

Calculator

Solution

The third proportional to 85,428 and 136,038 is: 216,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,428 : 136,038 = 136,038 : x
  2. Step 2: Convert to fraction form
    85,428/136,038 = 136,038/x
  3. Step 3: Cross multiply
    85,428x = 136,038 × 136,038
  4. Step 4: Simplify right side
    85,428x = 18,506,337,444
  5. Step 5: Solve for x
    x = 18,506,337,444/85,428
  6. Step 6: Final answer
    x = 216,630.82

Related Problems

Find third proportional to 42,714 and 68,019
Half scale
Find third proportional to 170,856 and 272,076
Double scale
Find third proportional to 85,430 and 136,041
Similar ratio
Find third proportional to 128,142 and 204,057
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.