Finding the Fourth Proportional to 104,221.08, 155,576.97 and 91,609.92
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Solution
The fourth proportional to 104,221.08, 155,576.97 and 91,609.92 is: 136,751.55
Step by Step Solution
- Step 1: Write the proportion equation
104,221.08 : 155,576.97 = 91,609.92 : x - Step 2: Convert to fraction form
104,221.08/155,576.97 = 91,609.92/x - Step 3: Cross multiply
104,221.08x = 155,576.97 × 91,609.92 - Step 4: Simplify right side
104,221.08x = 14,252,393,775.54 - Step 5: Solve for x
x = 14,252,393,775.54/104,221.08 - Step 6: Final answer
x = 136,751.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.