Finding the Fourth Proportional to 104,986.53, 144,882.07 and 57,240.68
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Solution
The fourth proportional to 104,986.53, 144,882.07 and 57,240.68 is: 78,992.49
Step by Step Solution
- Step 1: Write the proportion equation
104,986.53 : 144,882.07 = 57,240.68 : x - Step 2: Convert to fraction form
104,986.53/144,882.07 = 57,240.68/x - Step 3: Cross multiply
104,986.53x = 144,882.07 × 57,240.68 - Step 4: Simplify right side
104,986.53x = 8,293,147,339.10 - Step 5: Solve for x
x = 8,293,147,339.10/104,986.53 - Step 6: Final answer
x = 78,992.49
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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.