Finding the Fourth Proportional to 136,631.08, 204,957.18 and 52,431.56
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Solution
The fourth proportional to 136,631.08, 204,957.18 and 52,431.56 is: 78,651.39
Step by Step Solution
- Step 1: Write the proportion equation
136,631.08 : 204,957.18 = 52,431.56 : x - Step 2: Convert to fraction form
136,631.08/204,957.18 = 52,431.56/x - Step 3: Cross multiply
136,631.08x = 204,957.18 × 52,431.56 - Step 4: Simplify right side
136,631.08x = 10,746,224,680.60 - Step 5: Solve for x
x = 10,746,224,680.60/136,631.08 - Step 6: Final answer
x = 78,651.39
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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.