Home / 69,430-143,783

Finding the Third Proportional to 69,430 and 143,783

Calculator

Solution

The third proportional to 69,430 and 143,783 is: 297,761.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,430 : 143,783 = 143,783 : x
  2. Step 2: Convert to fraction form
    69,430/143,783 = 143,783/x
  3. Step 3: Cross multiply
    69,430x = 143,783 × 143,783
  4. Step 4: Simplify right side
    69,430x = 20,673,551,089
  5. Step 5: Solve for x
    x = 20,673,551,089/69,430
  6. Step 6: Final answer
    x = 297,761.07

Related Problems

Find third proportional to 34,715 and 71,891.50
Half scale
Find third proportional to 138,860 and 287,566
Double scale
Find third proportional to 69,432 and 143,787
Similar ratio
Find third proportional to 104,145 and 215,674.50
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.