Finding the Fourth Proportional to 161,866.21, 223,391.69 and 93,903.97
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Solution
The fourth proportional to 161,866.21, 223,391.69 and 93,903.97 is: 129,596.95
Step by Step Solution
- Step 1: Write the proportion equation
161,866.21 : 223,391.69 = 93,903.97 : x - Step 2: Convert to fraction form
161,866.21/223,391.69 = 93,903.97/x - Step 3: Cross multiply
161,866.21x = 223,391.69 × 93,903.97 - Step 4: Simplify right side
161,866.21x = 20,977,366,556.01 - Step 5: Solve for x
x = 20,977,366,556.01/161,866.21 - Step 6: Final answer
x = 129,596.95
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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.