Home / 77,663-169,866

Finding the Third Proportional to 77,663 and 169,866

Calculator

Solution

The third proportional to 77,663 and 169,866 is: 371,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,663 : 169,866 = 169,866 : x
  2. Step 2: Convert to fraction form
    77,663/169,866 = 169,866/x
  3. Step 3: Cross multiply
    77,663x = 169,866 × 169,866
  4. Step 4: Simplify right side
    77,663x = 28,854,457,956
  5. Step 5: Solve for x
    x = 28,854,457,956/77,663
  6. Step 6: Final answer
    x = 371,534.17

Related Problems

Find third proportional to 38,831.50 and 84,933
Half scale
Find third proportional to 155,326 and 339,732
Double scale
Find third proportional to 77,665 and 169,870
Similar ratio
Find third proportional to 116,494.50 and 254,799
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.