Finding the Fourth Proportional to 138,382.26, 207,554.34 and 54,083.94
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Solution
The fourth proportional to 138,382.26, 207,554.34 and 54,083.94 is: 81,118.46
Step by Step Solution
- Step 1: Write the proportion equation
138,382.26 : 207,554.34 = 54,083.94 : x - Step 2: Convert to fraction form
138,382.26/207,554.34 = 54,083.94/x - Step 3: Cross multiply
138,382.26x = 207,554.34 × 54,083.94 - Step 4: Simplify right side
138,382.26x = 11,225,356,471.30 - Step 5: Solve for x
x = 11,225,356,471.30/138,382.26 - Step 6: Final answer
x = 81,118.46
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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.