Finding the Fourth Proportional to 122,805.10, 169,458.97 and 69,088.96
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Solution
The fourth proportional to 122,805.10, 169,458.97 and 69,088.96 is: 95,335.98
Step by Step Solution
- Step 1: Write the proportion equation
122,805.10 : 169,458.97 = 69,088.96 : x - Step 2: Convert to fraction form
122,805.10/169,458.97 = 69,088.96/x - Step 3: Cross multiply
122,805.10x = 169,458.97 × 69,088.96 - Step 4: Simplify right side
122,805.10x = 11,707,743,999.97 - Step 5: Solve for x
x = 11,707,743,999.97/122,805.10 - Step 6: Final answer
x = 95,335.98
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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.