Finding the Fourth Proportional to 160,821.82, 221,902.11 and 97,163.14
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Solution
The fourth proportional to 160,821.82, 221,902.11 and 97,163.14 is: 134,065.80
Step by Step Solution
- Step 1: Write the proportion equation
160,821.82 : 221,902.11 = 97,163.14 : x - Step 2: Convert to fraction form
160,821.82/221,902.11 = 97,163.14/x - Step 3: Cross multiply
160,821.82x = 221,902.11 × 97,163.14 - Step 4: Simplify right side
160,821.82x = 21,560,705,780.23 - Step 5: Solve for x
x = 21,560,705,780.23/160,821.82 - Step 6: Final answer
x = 134,065.80
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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.