Finding the Fourth Proportional to 122,886.09, 169,582.84 and 71,908.63
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Solution
The fourth proportional to 122,886.09, 169,582.84 and 71,908.63 is: 99,233.93
Step by Step Solution
- Step 1: Write the proportion equation
122,886.09 : 169,582.84 = 71,908.63 : x - Step 2: Convert to fraction form
122,886.09/169,582.84 = 71,908.63/x - Step 3: Cross multiply
122,886.09x = 169,582.84 × 71,908.63 - Step 4: Simplify right side
122,886.09x = 12,194,469,092.18 - Step 5: Solve for x
x = 12,194,469,092.18/122,886.09 - Step 6: Final answer
x = 99,233.93
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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.