Finding the Fourth Proportional to 168,082.93, 231,950.17 and 91,603.99
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Solution
The fourth proportional to 168,082.93, 231,950.17 and 91,603.99 is: 126,411.18
Step by Step Solution
- Step 1: Write the proportion equation
168,082.93 : 231,950.17 = 91,603.99 : x - Step 2: Convert to fraction form
168,082.93/231,950.17 = 91,603.99/x - Step 3: Cross multiply
168,082.93x = 231,950.17 × 91,603.99 - Step 4: Simplify right side
168,082.93x = 21,247,561,053.18 - Step 5: Solve for x
x = 21,247,561,053.18/168,082.93 - Step 6: Final answer
x = 126,411.18
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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.