Finding the Fourth Proportional to 127,276.80, 190,915.20 and 107,593.80
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Solution
The fourth proportional to 127,276.80, 190,915.20 and 107,593.80 is: 161,390.70
Step by Step Solution
- Step 1: Write the proportion equation
127,276.80 : 190,915.20 = 107,593.80 : x - Step 2: Convert to fraction form
127,276.80/190,915.20 = 107,593.80/x - Step 3: Cross multiply
127,276.80x = 190,915.20 × 107,593.80 - Step 4: Simplify right side
127,276.80x = 20,541,291,845.76 - Step 5: Solve for x
x = 20,541,291,845.76/127,276.80 - Step 6: Final answer
x = 161,390.70
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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.