Finding the Fourth Proportional to 123,587.26, 170,543.86 and 69,869.08
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Solution
The fourth proportional to 123,587.26, 170,543.86 and 69,869.08 is: 96,415.61
Step by Step Solution
- Step 1: Write the proportion equation
123,587.26 : 170,543.86 = 69,869.08 : x - Step 2: Convert to fraction form
123,587.26/170,543.86 = 69,869.08/x - Step 3: Cross multiply
123,587.26x = 170,543.86 × 69,869.08 - Step 4: Simplify right side
123,587.26x = 11,915,741,745.13 - Step 5: Solve for x
x = 11,915,741,745.13/123,587.26 - Step 6: Final answer
x = 96,415.61
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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.