Finding the Fourth Proportional to 107,916.96, 161,736.90 and 51,672.79
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Solution
The fourth proportional to 107,916.96, 161,736.90 and 51,672.79 is: 77,442.84
Step by Step Solution
- Step 1: Write the proportion equation
107,916.96 : 161,736.90 = 51,672.79 : x - Step 2: Convert to fraction form
107,916.96/161,736.90 = 51,672.79/x - Step 3: Cross multiply
107,916.96x = 161,736.90 × 51,672.79 - Step 4: Simplify right side
107,916.96x = 8,357,396,258.24 - Step 5: Solve for x
x = 8,357,396,258.24/107,916.96 - Step 6: Final answer
x = 77,442.84
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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.