Finding the Fourth Proportional to 122,554.73, 169,110.66 and 68,106.63
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Solution
The fourth proportional to 122,554.73, 169,110.66 and 68,106.63 is: 93,978.89
Step by Step Solution
- Step 1: Write the proportion equation
122,554.73 : 169,110.66 = 68,106.63 : x - Step 2: Convert to fraction form
122,554.73/169,110.66 = 68,106.63/x - Step 3: Cross multiply
122,554.73x = 169,110.66 × 68,106.63 - Step 4: Simplify right side
122,554.73x = 11,517,557,149.68 - Step 5: Solve for x
x = 11,517,557,149.68/122,554.73 - Step 6: Final answer
x = 93,978.89
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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.