Home / 74,745-109,239

Finding the Third Proportional to 74,745 and 109,239

Calculator

Solution

The third proportional to 74,745 and 109,239 is: 159,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,745 : 109,239 = 109,239 : x
  2. Step 2: Convert to fraction form
    74,745/109,239 = 109,239/x
  3. Step 3: Cross multiply
    74,745x = 109,239 × 109,239
  4. Step 4: Simplify right side
    74,745x = 11,933,159,121
  5. Step 5: Solve for x
    x = 11,933,159,121/74,745
  6. Step 6: Final answer
    x = 159,651.60

Related Problems

Find third proportional to 37,372.50 and 54,619.50
Half scale
Find third proportional to 149,490 and 218,478
Double scale
Find third proportional to 74,747 and 109,242
Similar ratio
Find third proportional to 112,117.50 and 163,858.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.