Finding the Fourth Proportional to 126,186.38, 189,216.31 and 41,916.99
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Solution
The fourth proportional to 126,186.38, 189,216.31 and 41,916.99 is: 62,854.47
Step by Step Solution
- Step 1: Write the proportion equation
126,186.38 : 189,216.31 = 41,916.99 : x - Step 2: Convert to fraction form
126,186.38/189,216.31 = 41,916.99/x - Step 3: Cross multiply
126,186.38x = 189,216.31 × 41,916.99 - Step 4: Simplify right side
126,186.38x = 7,931,378,174.11 - Step 5: Solve for x
x = 7,931,378,174.11/126,186.38 - Step 6: Final answer
x = 62,854.47
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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.