Finding the Fourth Proportional to 122,474.62, 169,017.60 and 68,761.09
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Solution
The fourth proportional to 122,474.62, 169,017.60 and 68,761.09 is: 94,891.78
Step by Step Solution
- Step 1: Write the proportion equation
122,474.62 : 169,017.60 = 68,761.09 : x - Step 2: Convert to fraction form
122,474.62/169,017.60 = 68,761.09/x - Step 3: Cross multiply
122,474.62x = 169,017.60 × 68,761.09 - Step 4: Simplify right side
122,474.62x = 11,621,834,405.18 - Step 5: Solve for x
x = 11,621,834,405.18/122,474.62 - Step 6: Final answer
x = 94,891.78
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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.