Finding the Fourth Proportional to 144,915.75, 199,915.70 and 102,497.67
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Solution
The fourth proportional to 144,915.75, 199,915.70 and 102,497.67 is: 141,398.66
Step by Step Solution
- Step 1: Write the proportion equation
144,915.75 : 199,915.70 = 102,497.67 : x - Step 2: Convert to fraction form
144,915.75/199,915.70 = 102,497.67/x - Step 3: Cross multiply
144,915.75x = 199,915.70 × 102,497.67 - Step 4: Simplify right side
144,915.75x = 20,490,892,933.93 - Step 5: Solve for x
x = 20,490,892,933.93/144,915.75 - Step 6: Final answer
x = 141,398.66
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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.