Finding the Fourth Proportional to 108,458.92, 162,476.49 and 74,718.97
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Solution
The fourth proportional to 108,458.92, 162,476.49 and 74,718.97 is: 111,932.49
Step by Step Solution
- Step 1: Write the proportion equation
108,458.92 : 162,476.49 = 74,718.97 : x - Step 2: Convert to fraction form
108,458.92/162,476.49 = 74,718.97/x - Step 3: Cross multiply
108,458.92x = 162,476.49 × 74,718.97 - Step 4: Simplify right side
108,458.92x = 12,140,076,388.21 - Step 5: Solve for x
x = 12,140,076,388.21/108,458.92 - Step 6: Final answer
x = 111,932.49
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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.