Finding the Fourth Proportional to 119,915.07, 165,481.80 and 66,198.94
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Solution
The fourth proportional to 119,915.07, 165,481.80 and 66,198.94 is: 91,353.99
Step by Step Solution
- Step 1: Write the proportion equation
119,915.07 : 165,481.80 = 66,198.94 : x - Step 2: Convert to fraction form
119,915.07/165,481.80 = 66,198.94/x - Step 3: Cross multiply
119,915.07x = 165,481.80 × 66,198.94 - Step 4: Simplify right side
119,915.07x = 10,954,719,459.71 - Step 5: Solve for x
x = 10,954,719,459.71/119,915.07 - Step 6: Final answer
x = 91,353.99
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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.