What does the ticker p& g 3m @ 77.85 0.13 mean?

The ticker symbol is for the company Procter & Gamble common stock, listed in the stock exchange. 77.85 refers to the current market price for that stock. O.13 refers to the ticker time and is the point of reference to correlate the stock and price in that moment. It is a snapshot for investors to see how the market is doing at a glance.

A proportional relationship is where one ratio is the same as another ratio. For example, the ratio 1:2 is the same as 2:4. If you go ahead and divide both of these ratios, you'll get the same relationship 1:2.

Hope this helps :)

-Danny