Finding the Fourth Proportional to 151,765.68, 209,425.91 and 83,771.75
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Solution
The fourth proportional to 151,765.68, 209,425.91 and 83,771.75 is: 115,599.09
Step by Step Solution
- Step 1: Write the proportion equation
151,765.68 : 209,425.91 = 83,771.75 : x - Step 2: Convert to fraction form
151,765.68/209,425.91 = 83,771.75/x - Step 3: Cross multiply
151,765.68x = 209,425.91 × 83,771.75 - Step 4: Simplify right side
151,765.68x = 17,543,975,080.75 - Step 5: Solve for x
x = 17,543,975,080.75/151,765.68 - Step 6: Final answer
x = 115,599.09
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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.