To determine if the quantities are in a proportional relationship, we can check if the ratio of hours biked to miles traveled remains the same throughout the data table.
Ratio for the first set of data:
1 hour / 12 miles = 1/12
Ratio for the second set of data:
2 hours / 26 miles = 1/13
Ratio for the third set of data:
3 hours / 30 miles = 1/10
Ratio for the fourth set of data:
4 hours / 48 miles = 1/12
Since the ratios are not consistent, the quantities in the data table do not have a proportional relationship.