Home / 77,788-117,394

Finding the Third Proportional to 77,788 and 117,394

Calculator

Solution

The third proportional to 77,788 and 117,394 is: 177,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,788 : 117,394 = 117,394 : x
  2. Step 2: Convert to fraction form
    77,788/117,394 = 117,394/x
  3. Step 3: Cross multiply
    77,788x = 117,394 × 117,394
  4. Step 4: Simplify right side
    77,788x = 13,781,351,236
  5. Step 5: Solve for x
    x = 13,781,351,236/77,788
  6. Step 6: Final answer
    x = 177,165.52

Related Problems

Find third proportional to 38,894 and 58,697
Half scale
Find third proportional to 155,576 and 234,788
Double scale
Find third proportional to 77,790 and 117,397
Similar ratio
Find third proportional to 116,682 and 176,091
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.