Finding the Fourth Proportional to 129,433.82, 194,183.07 and 102,879.99
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Solution
The fourth proportional to 129,433.82, 194,183.07 and 102,879.99 is: 154,345.70
Step by Step Solution
- Step 1: Write the proportion equation
129,433.82 : 194,183.07 = 102,879.99 : x - Step 2: Convert to fraction form
129,433.82/194,183.07 = 102,879.99/x - Step 3: Cross multiply
129,433.82x = 194,183.07 × 102,879.99 - Step 4: Simplify right side
129,433.82x = 19,977,552,492.67 - Step 5: Solve for x
x = 19,977,552,492.67/129,433.82 - Step 6: Final answer
x = 154,345.70
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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.