Finding the Fourth Proportional to 107,554.99, 161,187.11 and 40,958.78
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Solution
The fourth proportional to 107,554.99, 161,187.11 and 40,958.78 is: 61,382.81
Step by Step Solution
- Step 1: Write the proportion equation
107,554.99 : 161,187.11 = 40,958.78 : x - Step 2: Convert to fraction form
107,554.99/161,187.11 = 40,958.78/x - Step 3: Cross multiply
107,554.99x = 161,187.11 × 40,958.78 - Step 4: Simplify right side
107,554.99x = 6,602,027,882.69 - Step 5: Solve for x
x = 6,602,027,882.69/107,554.99 - Step 6: Final answer
x = 61,382.81
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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.