Home / 66,641-145,309

Finding the Third Proportional to 66,641 and 145,309

Calculator

Solution

The third proportional to 66,641 and 145,309 is: 316,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641 : 145,309 = 145,309 : x
  2. Step 2: Convert to fraction form
    66,641/145,309 = 145,309/x
  3. Step 3: Cross multiply
    66,641x = 145,309 × 145,309
  4. Step 4: Simplify right side
    66,641x = 21,114,705,481
  5. Step 5: Solve for x
    x = 21,114,705,481/66,641
  6. Step 6: Final answer
    x = 316,842.57

Related Problems

Find third proportional to 33,320.50 and 72,654.50
Half scale
Find third proportional to 133,282 and 290,618
Double scale
Find third proportional to 66,643 and 145,313
Similar ratio
Find third proportional to 99,961.50 and 217,963.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.