Home / 68,730-145,884

Finding the Third Proportional to 68,730 and 145,884

Calculator

Solution

The third proportional to 68,730 and 145,884 is: 309,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730 : 145,884 = 145,884 : x
  2. Step 2: Convert to fraction form
    68,730/145,884 = 145,884/x
  3. Step 3: Cross multiply
    68,730x = 145,884 × 145,884
  4. Step 4: Simplify right side
    68,730x = 21,282,141,456
  5. Step 5: Solve for x
    x = 21,282,141,456/68,730
  6. Step 6: Final answer
    x = 309,648.50

Related Problems

Find third proportional to 34,365 and 72,942
Half scale
Find third proportional to 137,460 and 291,768
Double scale
Find third proportional to 68,732 and 145,888
Similar ratio
Find third proportional to 103,095 and 218,826
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.