Finding the Fourth Proportional to 122,252.67, 168,716.76 and 68,541.15
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Solution
The fourth proportional to 122,252.67, 168,716.76 and 68,541.15 is: 94,591.31
Step by Step Solution
- Step 1: Write the proportion equation
122,252.67 : 168,716.76 = 68,541.15 : x - Step 2: Convert to fraction form
122,252.67/168,716.76 = 68,541.15/x - Step 3: Cross multiply
122,252.67x = 168,716.76 × 68,541.15 - Step 4: Simplify right side
122,252.67x = 11,564,040,754.67 - Step 5: Solve for x
x = 11,564,040,754.67/122,252.67 - Step 6: Final answer
x = 94,591.31
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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.