Finding the Fourth Proportional to 122,694.08, 169,319.43 and 68,975.96
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Solution
The fourth proportional to 122,694.08, 169,319.43 and 68,975.96 is: 95,187.72
Step by Step Solution
- Step 1: Write the proportion equation
122,694.08 : 169,319.43 = 68,975.96 : x - Step 2: Convert to fraction form
122,694.08/169,319.43 = 68,975.96/x - Step 3: Cross multiply
122,694.08x = 169,319.43 × 68,975.96 - Step 4: Simplify right side
122,694.08x = 11,678,969,384.31 - Step 5: Solve for x
x = 11,678,969,384.31/122,694.08 - Step 6: Final answer
x = 95,187.72
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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.