Finding the Fourth Proportional to 122,428.26, 168,958.51 and 68,716.76
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Solution
The fourth proportional to 122,428.26, 168,958.51 and 68,716.76 is: 94,833.34
Step by Step Solution
- Step 1: Write the proportion equation
122,428.26 : 168,958.51 = 68,716.76 : x - Step 2: Convert to fraction form
122,428.26/168,958.51 = 68,716.76/x - Step 3: Cross multiply
122,428.26x = 168,958.51 × 68,716.76 - Step 4: Simplify right side
122,428.26x = 11,610,280,365.04 - Step 5: Solve for x
x = 11,610,280,365.04/122,428.26 - Step 6: Final answer
x = 94,833.34
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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.