Finding the Fourth Proportional to 122,362.76, 168,850.68 and 68,640.32
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Solution
The fourth proportional to 122,362.76, 168,850.68 and 68,640.32 is: 94,718.07
Step by Step Solution
- Step 1: Write the proportion equation
122,362.76 : 168,850.68 = 68,640.32 : x - Step 2: Convert to fraction form
122,362.76/168,850.68 = 68,640.32/x - Step 3: Cross multiply
122,362.76x = 168,850.68 × 68,640.32 - Step 4: Simplify right side
122,362.76x = 11,589,964,707.42 - Step 5: Solve for x
x = 11,589,964,707.42/122,362.76 - Step 6: Final answer
x = 94,718.07
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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.