Finding the Fourth Proportional to 151,951.80, 209,706.11 and 83,982.05
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Solution
The fourth proportional to 151,951.80, 209,706.11 and 83,982.05 is: 115,902.20
Step by Step Solution
- Step 1: Write the proportion equation
151,951.80 : 209,706.11 = 83,982.05 : x - Step 2: Convert to fraction form
151,951.80/209,706.11 = 83,982.05/x - Step 3: Cross multiply
151,951.80x = 209,706.11 × 83,982.05 - Step 4: Simplify right side
151,951.80x = 17,611,548,176.75 - Step 5: Solve for x
x = 17,611,548,176.75/151,951.80 - Step 6: Final answer
x = 115,902.20
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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.