Finding the Fourth Proportional to 122,318.88, 168,790.08 and 68,596.56
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Solution
The fourth proportional to 122,318.88, 168,790.08 and 68,596.56 is: 94,657.66
Step by Step Solution
- Step 1: Write the proportion equation
122,318.88 : 168,790.08 = 68,596.56 : x - Step 2: Convert to fraction form
122,318.88/168,790.08 = 68,596.56/x - Step 3: Cross multiply
122,318.88x = 168,790.08 × 68,596.56 - Step 4: Simplify right side
122,318.88x = 11,578,418,850.12 - Step 5: Solve for x
x = 11,578,418,850.12/122,318.88 - Step 6: Final answer
x = 94,657.66
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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.