Finding the Fourth Proportional to 163,169.87, 225,174.20 and 91,556.55
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Solution
The fourth proportional to 163,169.87, 225,174.20 and 91,556.55 is: 126,347.92
Step by Step Solution
- Step 1: Write the proportion equation
163,169.87 : 225,174.20 = 91,556.55 : x - Step 2: Convert to fraction form
163,169.87/225,174.20 = 91,556.55/x - Step 3: Cross multiply
163,169.87x = 225,174.20 × 91,556.55 - Step 4: Simplify right side
163,169.87x = 20,616,172,443.23 - Step 5: Solve for x
x = 20,616,172,443.23/163,169.87 - Step 6: Final answer
x = 126,347.92
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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.