Finding the Fourth Proportional to 119,704.68, 165,193.62 and 65,991.84
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Solution
The fourth proportional to 119,704.68, 165,193.62 and 65,991.84 is: 91,069.38
Step by Step Solution
- Step 1: Write the proportion equation
119,704.68 : 165,193.62 = 65,991.84 : x - Step 2: Convert to fraction form
119,704.68/165,193.62 = 65,991.84/x - Step 3: Cross multiply
119,704.68x = 165,193.62 × 65,991.84 - Step 4: Simplify right side
119,704.68x = 10,901,430,940.06 - Step 5: Solve for x
x = 10,901,430,940.06/119,704.68 - Step 6: Final answer
x = 91,069.38
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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.