Finding the Fourth Proportional to 189,603.99, 261,631.13 and 104,715.99
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Solution
The fourth proportional to 189,603.99, 261,631.13 and 104,715.99 is: 144,495.71
Step by Step Solution
- Step 1: Write the proportion equation
189,603.99 : 261,631.13 = 104,715.99 : x - Step 2: Convert to fraction form
189,603.99/261,631.13 = 104,715.99/x - Step 3: Cross multiply
189,603.99x = 261,631.13 × 104,715.99 - Step 4: Simplify right side
189,603.99x = 27,396,962,269.19 - Step 5: Solve for x
x = 27,396,962,269.19/189,603.99 - Step 6: Final answer
x = 144,495.71
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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.