Finding the Fourth Proportional to 107,680.23, 161,553.42 and 55,126.62
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Solution
The fourth proportional to 107,680.23, 161,553.42 and 55,126.62 is: 82,706.86
Step by Step Solution
- Step 1: Write the proportion equation
107,680.23 : 161,553.42 = 55,126.62 : x - Step 2: Convert to fraction form
107,680.23/161,553.42 = 55,126.62/x - Step 3: Cross multiply
107,680.23x = 161,553.42 × 55,126.62 - Step 4: Simplify right side
107,680.23x = 8,905,893,994.04 - Step 5: Solve for x
x = 8,905,893,994.04/107,680.23 - Step 6: Final answer
x = 82,706.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.