Finding the Fourth Proportional to 145,479.63, 200,759.97 and 81,817.44
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Solution
The fourth proportional to 145,479.63, 200,759.97 and 81,817.44 is: 112,906.99
Step by Step Solution
- Step 1: Write the proportion equation
145,479.63 : 200,759.97 = 81,817.44 : x - Step 2: Convert to fraction form
145,479.63/200,759.97 = 81,817.44/x - Step 3: Cross multiply
145,479.63x = 200,759.97 × 81,817.44 - Step 4: Simplify right side
145,479.63x = 16,425,666,799.88 - Step 5: Solve for x
x = 16,425,666,799.88/145,479.63 - Step 6: Final answer
x = 112,906.99
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1.5x scale
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.