Finding the Fourth Proportional to 141,915.91, 195,836.93 and 80,654.09
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Solution
The fourth proportional to 141,915.91, 195,836.93 and 80,654.09 is: 111,298.65
Step by Step Solution
- Step 1: Write the proportion equation
141,915.91 : 195,836.93 = 80,654.09 : x - Step 2: Convert to fraction form
141,915.91/195,836.93 = 80,654.09/x - Step 3: Cross multiply
141,915.91x = 195,836.93 × 80,654.09 - Step 4: Simplify right side
141,915.91x = 15,795,049,377.54 - Step 5: Solve for x
x = 15,795,049,377.54/141,915.91 - Step 6: Final answer
x = 111,298.65
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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.