Home / 78,672-169,854

Finding the Third Proportional to 78,672 and 169,854

Calculator

Solution

The third proportional to 78,672 and 169,854 is: 366,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,672 : 169,854 = 169,854 : x
  2. Step 2: Convert to fraction form
    78,672/169,854 = 169,854/x
  3. Step 3: Cross multiply
    78,672x = 169,854 × 169,854
  4. Step 4: Simplify right side
    78,672x = 28,850,381,316
  5. Step 5: Solve for x
    x = 28,850,381,316/78,672
  6. Step 6: Final answer
    x = 366,717.27

Related Problems

Find third proportional to 39,336 and 84,927
Half scale
Find third proportional to 157,344 and 339,708
Double scale
Find third proportional to 78,674 and 169,858
Similar ratio
Find third proportional to 118,008 and 254,781
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.