Finding the Fourth Proportional to 103,972.44, 143,529.66 and 68,163.96
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Solution
The fourth proportional to 103,972.44, 143,529.66 and 68,163.96 is: 94,097.53
Step by Step Solution
- Step 1: Write the proportion equation
103,972.44 : 143,529.66 = 68,163.96 : x - Step 2: Convert to fraction form
103,972.44/143,529.66 = 68,163.96/x - Step 3: Cross multiply
103,972.44x = 143,529.66 × 68,163.96 - Step 4: Simplify right side
103,972.44x = 9,783,550,003.05 - Step 5: Solve for x
x = 9,783,550,003.05/103,972.44 - Step 6: Final answer
x = 94,097.53
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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.