Finding the Fourth Proportional to 122,512.94, 169,076.26 and 68,071.68
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Solution
The fourth proportional to 122,512.94, 169,076.26 and 68,071.68 is: 93,943.59
Step by Step Solution
- Step 1: Write the proportion equation
122,512.94 : 169,076.26 = 68,071.68 : x - Step 2: Convert to fraction form
122,512.94/169,076.26 = 68,071.68/x - Step 3: Cross multiply
122,512.94x = 169,076.26 × 68,071.68 - Step 4: Simplify right side
122,512.94x = 11,509,305,066.32 - Step 5: Solve for x
x = 11,509,305,066.32/122,512.94 - Step 6: Final answer
x = 93,943.59
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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.