Finding the Fourth Proportional to 189,427.59, 261,443.97 and 112,951.62
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Solution
The fourth proportional to 189,427.59, 261,443.97 and 112,951.62 is: 155,893.45
Step by Step Solution
- Step 1: Write the proportion equation
189,427.59 : 261,443.97 = 112,951.62 : x - Step 2: Convert to fraction form
189,427.59/261,443.97 = 112,951.62/x - Step 3: Cross multiply
189,427.59x = 261,443.97 × 112,951.62 - Step 4: Simplify right side
189,427.59x = 29,530,519,950.73 - Step 5: Solve for x
x = 29,530,519,950.73/189,427.59 - Step 6: Final answer
x = 155,893.45
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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.