Finding the Fourth Proportional to 199,781.26, 299,715.66 and 75,122.26
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Solution
The fourth proportional to 199,781.26, 299,715.66 and 75,122.26 is: 112,699.85
Step by Step Solution
- Step 1: Write the proportion equation
199,781.26 : 299,715.66 = 75,122.26 : x - Step 2: Convert to fraction form
199,781.26/299,715.66 = 75,122.26/x - Step 3: Cross multiply
199,781.26x = 299,715.66 × 75,122.26 - Step 4: Simplify right side
199,781.26x = 22,515,317,736.59 - Step 5: Solve for x
x = 22,515,317,736.59/199,781.26 - Step 6: Final answer
x = 112,699.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.