Finding the Fourth Proportional to 163,205.91, 225,166.38 and 106,650.09
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Solution
The fourth proportional to 163,205.91, 225,166.38 and 106,650.09 is: 147,139.37
Step by Step Solution
- Step 1: Write the proportion equation
163,205.91 : 225,166.38 = 106,650.09 : x - Step 2: Convert to fraction form
163,205.91/225,166.38 = 106,650.09/x - Step 3: Cross multiply
163,205.91x = 225,166.38 × 106,650.09 - Step 4: Simplify right side
163,205.91x = 24,014,014,691.97 - Step 5: Solve for x
x = 24,014,014,691.97/163,205.91 - Step 6: Final answer
x = 147,139.37
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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.