Finding the Fourth Proportional to 122,827.92, 169,523.16 and 71,137.44
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Solution
The fourth proportional to 122,827.92, 169,523.16 and 71,137.44 is: 98,181.62
Step by Step Solution
- Step 1: Write the proportion equation
122,827.92 : 169,523.16 = 71,137.44 : x - Step 2: Convert to fraction form
122,827.92/169,523.16 = 71,137.44/x - Step 3: Cross multiply
122,827.92x = 169,523.16 × 71,137.44 - Step 4: Simplify right side
122,827.92x = 12,059,443,623.11 - Step 5: Solve for x
x = 12,059,443,623.11/122,827.92 - Step 6: Final answer
x = 98,181.62
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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.