Finding the Fourth Proportional to 122,428.24, 168,967.46 and 68,716.19
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Solution
The fourth proportional to 122,428.24, 168,967.46 and 68,716.19 is: 94,837.60
Step by Step Solution
- Step 1: Write the proportion equation
122,428.24 : 168,967.46 = 68,716.19 : x - Step 2: Convert to fraction form
122,428.24/168,967.46 = 68,716.19/x - Step 3: Cross multiply
122,428.24x = 168,967.46 × 68,716.19 - Step 4: Simplify right side
122,428.24x = 11,610,800,085.18 - Step 5: Solve for x
x = 11,610,800,085.18/122,428.24 - Step 6: Final answer
x = 94,837.60
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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.