Home / 77,239-169,239

Finding the Third Proportional to 77,239 and 169,239

Calculator

Solution

The third proportional to 77,239 and 169,239 is: 370,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,239 : 169,239 = 169,239 : x
  2. Step 2: Convert to fraction form
    77,239/169,239 = 169,239/x
  3. Step 3: Cross multiply
    77,239x = 169,239 × 169,239
  4. Step 4: Simplify right side
    77,239x = 28,641,839,121
  5. Step 5: Solve for x
    x = 28,641,839,121/77,239
  6. Step 6: Final answer
    x = 370,820.95

Related Problems

Find third proportional to 38,619.50 and 84,619.50
Half scale
Find third proportional to 154,478 and 338,478
Double scale
Find third proportional to 77,241 and 169,243
Similar ratio
Find third proportional to 115,858.50 and 253,858.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.