Finding the Fourth Proportional to 120,614.36, 166,467.75 and 66,916.68
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Solution
The fourth proportional to 120,614.36, 166,467.75 and 66,916.68 is: 92,356.07
Step by Step Solution
- Step 1: Write the proportion equation
120,614.36 : 166,467.75 = 66,916.68 : x - Step 2: Convert to fraction form
120,614.36/166,467.75 = 66,916.68/x - Step 3: Cross multiply
120,614.36x = 166,467.75 × 66,916.68 - Step 4: Simplify right side
120,614.36x = 11,139,467,990.15 - Step 5: Solve for x
x = 11,139,467,990.15/120,614.36 - Step 6: Final answer
x = 92,356.07
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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.