Finding the Fourth Proportional to 163,410.92, 225,478.64 and 91,793.96
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Solution
The fourth proportional to 163,410.92, 225,478.64 and 91,793.96 is: 126,659.69
Step by Step Solution
- Step 1: Write the proportion equation
163,410.92 : 225,478.64 = 91,793.96 : x - Step 2: Convert to fraction form
163,410.92/225,478.64 = 91,793.96/x - Step 3: Cross multiply
163,410.92x = 225,478.64 × 91,793.96 - Step 4: Simplify right side
163,410.92x = 20,697,576,692.31 - Step 5: Solve for x
x = 20,697,576,692.31/163,410.92 - Step 6: Final answer
x = 126,659.69
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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.