Home / 90,639-127,413

Finding the Third Proportional to 90,639 and 127,413

Calculator

Solution

The third proportional to 90,639 and 127,413 is: 179,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,639 : 127,413 = 127,413 : x
  2. Step 2: Convert to fraction form
    90,639/127,413 = 127,413/x
  3. Step 3: Cross multiply
    90,639x = 127,413 × 127,413
  4. Step 4: Simplify right side
    90,639x = 16,234,072,569
  5. Step 5: Solve for x
    x = 16,234,072,569/90,639
  6. Step 6: Final answer
    x = 179,106.92

Related Problems

Find third proportional to 45,319.50 and 63,706.50
Half scale
Find third proportional to 181,278 and 254,826
Double scale
Find third proportional to 90,641 and 127,416
Similar ratio
Find third proportional to 135,958.50 and 191,119.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.