Home / 69,445-143,813

Finding the Third Proportional to 69,445 and 143,813

Calculator

Solution

The third proportional to 69,445 and 143,813 is: 297,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,445 : 143,813 = 143,813 : x
  2. Step 2: Convert to fraction form
    69,445/143,813 = 143,813/x
  3. Step 3: Cross multiply
    69,445x = 143,813 × 143,813
  4. Step 4: Simplify right side
    69,445x = 20,682,178,969
  5. Step 5: Solve for x
    x = 20,682,178,969/69,445
  6. Step 6: Final answer
    x = 297,820.99

Related Problems

Find third proportional to 34,722.50 and 71,906.50
Half scale
Find third proportional to 138,890 and 287,626
Double scale
Find third proportional to 69,447 and 143,817
Similar ratio
Find third proportional to 104,167.50 and 215,719.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.