Finding the Fourth Proportional to 132,893.16, 183,392.61 and 85,211.09
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Solution
The fourth proportional to 132,893.16, 183,392.61 and 85,211.09 is: 117,591.33
Step by Step Solution
- Step 1: Write the proportion equation
132,893.16 : 183,392.61 = 85,211.09 : x - Step 2: Convert to fraction form
132,893.16/183,392.61 = 85,211.09/x - Step 3: Cross multiply
132,893.16x = 183,392.61 × 85,211.09 - Step 4: Simplify right side
132,893.16x = 15,627,083,647.26 - Step 5: Solve for x
x = 15,627,083,647.26/132,893.16 - Step 6: Final answer
x = 117,591.33
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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.