Finding the Fourth Proportional to 122,942.63, 169,659.21 and 69,232.95
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Solution
The fourth proportional to 122,942.63, 169,659.21 and 69,232.95 is: 95,540.56
Step by Step Solution
- Step 1: Write the proportion equation
122,942.63 : 169,659.21 = 69,232.95 : x - Step 2: Convert to fraction form
122,942.63/169,659.21 = 69,232.95/x - Step 3: Cross multiply
122,942.63x = 169,659.21 × 69,232.95 - Step 4: Simplify right side
122,942.63x = 11,746,007,602.97 - Step 5: Solve for x
x = 11,746,007,602.97/122,942.63 - Step 6: Final answer
x = 95,540.56
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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.