Finding the Fourth Proportional to 122,464.26, 168,989.10 and 68,738.78
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Solution
The fourth proportional to 122,464.26, 168,989.10 and 68,738.78 is: 94,853.02
Step by Step Solution
- Step 1: Write the proportion equation
122,464.26 : 168,989.10 = 68,738.78 : x - Step 2: Convert to fraction form
122,464.26/168,989.10 = 68,738.78/x - Step 3: Cross multiply
122,464.26x = 168,989.10 × 68,738.78 - Step 4: Simplify right side
122,464.26x = 11,616,104,567.30 - Step 5: Solve for x
x = 11,616,104,567.30/122,464.26 - Step 6: Final answer
x = 94,853.02
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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.