Home / 69,774-143,220

Finding the Third Proportional to 69,774 and 143,220

Calculator

Solution

The third proportional to 69,774 and 143,220 is: 293,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,774 : 143,220 = 143,220 : x
  2. Step 2: Convert to fraction form
    69,774/143,220 = 143,220/x
  3. Step 3: Cross multiply
    69,774x = 143,220 × 143,220
  4. Step 4: Simplify right side
    69,774x = 20,511,968,400
  5. Step 5: Solve for x
    x = 20,511,968,400/69,774
  6. Step 6: Final answer
    x = 293,977.25

Related Problems

Find third proportional to 34,887 and 71,610
Half scale
Find third proportional to 139,548 and 286,440
Double scale
Find third proportional to 69,776 and 143,224
Similar ratio
Find third proportional to 104,661 and 214,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.