Finding the Fourth Proportional to 160,338.07, 221,334.69 and 99,938.80
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Solution
The fourth proportional to 160,338.07, 221,334.69 and 99,938.80 is: 137,958.02
Step by Step Solution
- Step 1: Write the proportion equation
160,338.07 : 221,334.69 = 99,938.80 : x - Step 2: Convert to fraction form
160,338.07/221,334.69 = 99,938.80/x - Step 3: Cross multiply
160,338.07x = 221,334.69 × 99,938.80 - Step 4: Simplify right side
160,338.07x = 22,119,923,316.97 - Step 5: Solve for x
x = 22,119,923,316.97/160,338.07 - Step 6: Final answer
x = 137,958.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.