Finding the Fourth Proportional to 120,541.44, 166,291.20 and 75,190.08
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Solution
The fourth proportional to 120,541.44, 166,291.20 and 75,190.08 is: 103,727.39
Step by Step Solution
- Step 1: Write the proportion equation
120,541.44 : 166,291.20 = 75,190.08 : x - Step 2: Convert to fraction form
120,541.44/166,291.20 = 75,190.08/x - Step 3: Cross multiply
120,541.44x = 166,291.20 × 75,190.08 - Step 4: Simplify right side
120,541.44x = 12,503,448,631.30 - Step 5: Solve for x
x = 12,503,448,631.30/120,541.44 - Step 6: Final answer
x = 103,727.39
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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.