Finding the Fourth Proportional to 120,628.24, 166,461.28 and 66,912.08
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Solution
The fourth proportional to 120,628.24, 166,461.28 and 66,912.08 is: 92,335.51
Step by Step Solution
- Step 1: Write the proportion equation
120,628.24 : 166,461.28 = 66,912.08 : x - Step 2: Convert to fraction form
120,628.24/166,461.28 = 66,912.08/x - Step 3: Cross multiply
120,628.24x = 166,461.28 × 66,912.08 - Step 4: Simplify right side
120,628.24x = 11,138,269,484.68 - Step 5: Solve for x
x = 11,138,269,484.68/120,628.24 - Step 6: Final answer
x = 92,335.51
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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.