Final answer:
To achieve an annual income of $160,000 with a 4% withdrawal rate, you should have saved $4,000,000.
Step-by-step explanation:
To calculate how much you should have saved to have an annual income of $160,000 with a 4% withdrawal rate, you can use the formula:
Savings = Annual Income / Withdrawal Rate
So in this case:
Savings = $160,000 / 0.04 = $4,000,000
Therefore, you should have saved $4,000,000 to achieve an annual income of $160,000 with a 4% withdrawal rate.