Home / 66,856-145,376

Finding the Third Proportional to 66,856 and 145,376

Calculator

Solution

The third proportional to 66,856 and 145,376 is: 316,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856 : 145,376 = 145,376 : x
  2. Step 2: Convert to fraction form
    66,856/145,376 = 145,376/x
  3. Step 3: Cross multiply
    66,856x = 145,376 × 145,376
  4. Step 4: Simplify right side
    66,856x = 21,134,181,376
  5. Step 5: Solve for x
    x = 21,134,181,376/66,856
  6. Step 6: Final answer
    x = 316,114.95

Related Problems

Find third proportional to 33,428 and 72,688
Half scale
Find third proportional to 133,712 and 290,752
Double scale
Find third proportional to 66,858 and 145,380
Similar ratio
Find third proportional to 100,284 and 218,064
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.