Finding the Fourth Proportional to 107,644.44, 148,603.14 and 83,391.44
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Solution
The fourth proportional to 107,644.44, 148,603.14 and 83,391.44 is: 115,121.88
Step by Step Solution
- Step 1: Write the proportion equation
107,644.44 : 148,603.14 = 83,391.44 : x - Step 2: Convert to fraction form
107,644.44/148,603.14 = 83,391.44/x - Step 3: Cross multiply
107,644.44x = 148,603.14 × 83,391.44 - Step 4: Simplify right side
107,644.44x = 12,392,229,833.12 - Step 5: Solve for x
x = 12,392,229,833.12/107,644.44 - Step 6: Final answer
x = 115,121.88
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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.