Finding the Fourth Proportional to 107,708.11, 148,540.44 and 67,425.55
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Solution
The fourth proportional to 107,708.11, 148,540.44 and 67,425.55 is: 92,986.69
Step by Step Solution
- Step 1: Write the proportion equation
107,708.11 : 148,540.44 = 67,425.55 : x - Step 2: Convert to fraction form
107,708.11/148,540.44 = 67,425.55/x - Step 3: Cross multiply
107,708.11x = 148,540.44 × 67,425.55 - Step 4: Simplify right side
107,708.11x = 10,015,420,864.24 - Step 5: Solve for x
x = 10,015,420,864.24/107,708.11 - Step 6: Final answer
x = 92,986.69
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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.