Finding the Fourth Proportional to 166,858.18, 230,265.10 and 91,406.68
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Solution
The fourth proportional to 166,858.18, 230,265.10 and 91,406.68 is: 126,141.66
Step by Step Solution
- Step 1: Write the proportion equation
166,858.18 : 230,265.10 = 91,406.68 : x - Step 2: Convert to fraction form
166,858.18/230,265.10 = 91,406.68/x - Step 3: Cross multiply
166,858.18x = 230,265.10 × 91,406.68 - Step 4: Simplify right side
166,858.18x = 21,047,768,310.87 - Step 5: Solve for x
x = 21,047,768,310.87/166,858.18 - Step 6: Final answer
x = 126,141.66
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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.