Finding the Fourth Proportional to 119,343.98, 164,698.71 and 65,631.26
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Solution
The fourth proportional to 119,343.98, 164,698.71 and 65,631.26 is: 90,573.35
Step by Step Solution
- Step 1: Write the proportion equation
119,343.98 : 164,698.71 = 65,631.26 : x - Step 2: Convert to fraction form
119,343.98/164,698.71 = 65,631.26/x - Step 3: Cross multiply
119,343.98x = 164,698.71 × 65,631.26 - Step 4: Simplify right side
119,343.98x = 10,809,383,857.67 - Step 5: Solve for x
x = 10,809,383,857.67/119,343.98 - Step 6: Final answer
x = 90,573.35
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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.