Home / 61,115-127,810

Finding the Third Proportional to 61,115 and 127,810

Calculator

Solution

The third proportional to 61,115 and 127,810 is: 267,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,115 : 127,810 = 127,810 : x
  2. Step 2: Convert to fraction form
    61,115/127,810 = 127,810/x
  3. Step 3: Cross multiply
    61,115x = 127,810 × 127,810
  4. Step 4: Simplify right side
    61,115x = 16,335,396,100
  5. Step 5: Solve for x
    x = 16,335,396,100/61,115
  6. Step 6: Final answer
    x = 267,289.47

Related Problems

Find third proportional to 30,557.50 and 63,905
Half scale
Find third proportional to 122,230 and 255,620
Double scale
Find third proportional to 61,117 and 127,814
Similar ratio
Find third proportional to 91,672.50 and 191,715
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.