Finding the Fourth Proportional to 123,568.14, 170,523.84 and 66,979.53
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Solution
The fourth proportional to 123,568.14, 170,523.84 and 66,979.53 is: 92,431.65
Step by Step Solution
- Step 1: Write the proportion equation
123,568.14 : 170,523.84 = 66,979.53 : x - Step 2: Convert to fraction form
123,568.14/170,523.84 = 66,979.53/x - Step 3: Cross multiply
123,568.14x = 170,523.84 × 66,979.53 - Step 4: Simplify right side
123,568.14x = 11,421,606,657.00 - Step 5: Solve for x
x = 11,421,606,657.00/123,568.14 - Step 6: Final answer
x = 92,431.65
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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.