Finding the Fourth Proportional to 120,889.44, 166,817.64 and 69,905.49
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Solution
The fourth proportional to 120,889.44, 166,817.64 and 69,905.49 is: 96,463.92
Step by Step Solution
- Step 1: Write the proportion equation
120,889.44 : 166,817.64 = 69,905.49 : x - Step 2: Convert to fraction form
120,889.44/166,817.64 = 69,905.49/x - Step 3: Cross multiply
120,889.44x = 166,817.64 × 69,905.49 - Step 4: Simplify right side
120,889.44x = 11,661,468,864.84 - Step 5: Solve for x
x = 11,661,468,864.84/120,889.44 - Step 6: Final answer
x = 96,463.92
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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.