Finding the Fourth Proportional to 119,615.97, 164,877.62 and 80,841.66
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Solution
The fourth proportional to 119,615.97, 164,877.62 and 80,841.66 is: 111,431.45
Step by Step Solution
- Step 1: Write the proportion equation
119,615.97 : 164,877.62 = 80,841.66 : x - Step 2: Convert to fraction form
119,615.97/164,877.62 = 80,841.66/x - Step 3: Cross multiply
119,615.97x = 164,877.62 × 80,841.66 - Step 4: Simplify right side
119,615.97x = 13,328,980,497.65 - Step 5: Solve for x
x = 13,328,980,497.65/119,615.97 - Step 6: Final answer
x = 111,431.45
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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.