Finding the Fourth Proportional to 123,340.70, 170,243.04 and 69,657.14
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Solution
The fourth proportional to 123,340.70, 170,243.04 and 69,657.14 is: 96,145.42
Step by Step Solution
- Step 1: Write the proportion equation
123,340.70 : 170,243.04 = 69,657.14 : x - Step 2: Convert to fraction form
123,340.70/170,243.04 = 69,657.14/x - Step 3: Cross multiply
123,340.70x = 170,243.04 × 69,657.14 - Step 4: Simplify right side
123,340.70x = 11,858,643,271.31 - Step 5: Solve for x
x = 11,858,643,271.31/123,340.70 - Step 6: Final answer
x = 96,145.42
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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.