Finding the Fourth Proportional to 120,498.51, 166,287.96 and 66,786.99
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Solution
The fourth proportional to 120,498.51, 166,287.96 and 66,786.99 is: 92,166.06
Step by Step Solution
- Step 1: Write the proportion equation
120,498.51 : 166,287.96 = 66,786.99 : x - Step 2: Convert to fraction form
120,498.51/166,287.96 = 66,786.99/x - Step 3: Cross multiply
120,498.51x = 166,287.96 × 66,786.99 - Step 4: Simplify right side
120,498.51x = 11,105,872,321.64 - Step 5: Solve for x
x = 11,105,872,321.64/120,498.51 - Step 6: Final answer
x = 92,166.06
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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.