Finding the Fourth Proportional to 131,969.62, 182,115.84 and 74,608.05
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Solution
The fourth proportional to 131,969.62, 182,115.84 and 74,608.05 is: 102,957.85
Step by Step Solution
- Step 1: Write the proportion equation
131,969.62 : 182,115.84 = 74,608.05 : x - Step 2: Convert to fraction form
131,969.62/182,115.84 = 74,608.05/x - Step 3: Cross multiply
131,969.62x = 182,115.84 × 74,608.05 - Step 4: Simplify right side
131,969.62x = 13,587,307,696.51 - Step 5: Solve for x
x = 13,587,307,696.51/131,969.62 - Step 6: Final answer
x = 102,957.85
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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.