Finding the Fourth Proportional to 132,857.26, 183,239.34 and 85,115.05
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Solution
The fourth proportional to 132,857.26, 183,239.34 and 85,115.05 is: 117,392.35
Step by Step Solution
- Step 1: Write the proportion equation
132,857.26 : 183,239.34 = 85,115.05 : x - Step 2: Convert to fraction form
132,857.26/183,239.34 = 85,115.05/x - Step 3: Cross multiply
132,857.26x = 183,239.34 × 85,115.05 - Step 4: Simplify right side
132,857.26x = 15,596,425,586.07 - Step 5: Solve for x
x = 15,596,425,586.07/132,857.26 - Step 6: Final answer
x = 117,392.35
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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.