Finding the Fourth Proportional to 112,586.36, 154,718.88 and 107,382.38
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Solution
The fourth proportional to 112,586.36, 154,718.88 and 107,382.38 is: 147,567.45
Step by Step Solution
- Step 1: Write the proportion equation
112,586.36 : 154,718.88 = 107,382.38 : x - Step 2: Convert to fraction form
112,586.36/154,718.88 = 107,382.38/x - Step 3: Cross multiply
112,586.36x = 154,718.88 × 107,382.38 - Step 4: Simplify right side
112,586.36x = 16,614,080,791.74 - Step 5: Solve for x
x = 16,614,080,791.74/112,586.36 - Step 6: Final answer
x = 147,567.45
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.