Increase :
70 by `140%`

Answer

To solve the problem of increasing 70 by 140%, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**: We need to increase the number 70 by 140%. This means we will find 140% of 70 and then add that to 70.

2. **Convert Percentage to Decimal**:
- To find 140% of 70, we first convert 140% to a decimal.
- 140% can be written as \( \frac{140}{100} \) or 1.4.

3. **Calculate 140% of 70**:
- Now, we multiply 70 by 1.4:
\[ 140\% \text{ of } 70 = 1.4 \times 70 \]

4. **Perform the Multiplication**:
- Calculate \( 1.4 \times 70 \):
\[ 1.4 \times 70 = 98 \]

5. **Add the Result to the Original Number**:
- Now, we add this result (98) to the original number (70):
\[ 70 + 98 = 168 \]

6. **Final Answer**:
- Therefore, increasing 70 by 140% gives us:
\[ \text{Final Answer} = 168 \]