Finding the Fourth Proportional to 107,708.37, 148,540.79 and 67,425.80
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Solution
The fourth proportional to 107,708.37, 148,540.79 and 67,425.80 is: 92,987.03
Step by Step Solution
- Step 1: Write the proportion equation
107,708.37 : 148,540.79 = 67,425.80 : x - Step 2: Convert to fraction form
107,708.37/148,540.79 = 67,425.80/x - Step 3: Cross multiply
107,708.37x = 148,540.79 × 67,425.80 - Step 4: Simplify right side
107,708.37x = 10,015,481,261.25 - Step 5: Solve for x
x = 10,015,481,261.25/107,708.37 - Step 6: Final answer
x = 92,987.03
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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.