Finding the Fourth Proportional to 127,121.36, 190,607.88 and 38,348.24
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Solution
The fourth proportional to 127,121.36, 190,607.88 and 38,348.24 is: 57,499.99
Step by Step Solution
- Step 1: Write the proportion equation
127,121.36 : 190,607.88 = 38,348.24 : x - Step 2: Convert to fraction form
127,121.36/190,607.88 = 38,348.24/x - Step 3: Cross multiply
127,121.36x = 190,607.88 × 38,348.24 - Step 4: Simplify right side
127,121.36x = 7,309,476,728.13 - Step 5: Solve for x
x = 7,309,476,728.13/127,121.36 - Step 6: Final answer
x = 57,499.99
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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.