Finding the Fourth Proportional to 135,346.22, 186,775.20 and 74,916.92
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Solution
The fourth proportional to 135,346.22, 186,775.20 and 74,916.92 is: 103,383.92
Step by Step Solution
- Step 1: Write the proportion equation
135,346.22 : 186,775.20 = 74,916.92 : x - Step 2: Convert to fraction form
135,346.22/186,775.20 = 74,916.92/x - Step 3: Cross multiply
135,346.22x = 186,775.20 × 74,916.92 - Step 4: Simplify right side
135,346.22x = 13,992,622,716.38 - Step 5: Solve for x
x = 13,992,622,716.38/135,346.22 - Step 6: Final answer
x = 103,383.92
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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.