Home / 89,520-136,872

Finding the Third Proportional to 89,520 and 136,872

Calculator

Solution

The third proportional to 89,520 and 136,872 is: 209,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,520 : 136,872 = 136,872 : x
  2. Step 2: Convert to fraction form
    89,520/136,872 = 136,872/x
  3. Step 3: Cross multiply
    89,520x = 136,872 × 136,872
  4. Step 4: Simplify right side
    89,520x = 18,733,944,384
  5. Step 5: Solve for x
    x = 18,733,944,384/89,520
  6. Step 6: Final answer
    x = 209,271.05

Related Problems

Find third proportional to 44,760 and 68,436
Half scale
Find third proportional to 179,040 and 273,744
Double scale
Find third proportional to 89,522 and 136,875
Similar ratio
Find third proportional to 134,280 and 205,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.