Home / 90,210-137,253

Finding the Third Proportional to 90,210 and 137,253

Calculator

Solution

The third proportional to 90,210 and 137,253 is: 208,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,210 : 137,253 = 137,253 : x
  2. Step 2: Convert to fraction form
    90,210/137,253 = 137,253/x
  3. Step 3: Cross multiply
    90,210x = 137,253 × 137,253
  4. Step 4: Simplify right side
    90,210x = 18,838,386,009
  5. Step 5: Solve for x
    x = 18,838,386,009/90,210
  6. Step 6: Final answer
    x = 208,828.13

Related Problems

Find third proportional to 45,105 and 68,626.50
Half scale
Find third proportional to 180,420 and 274,506
Double scale
Find third proportional to 90,212 and 137,256
Similar ratio
Find third proportional to 135,315 and 205,879.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.