Finding the Fourth Proportional to 126,397.26, 189,821.68 and 121,317.62
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Solution
The fourth proportional to 126,397.26, 189,821.68 and 121,317.62 is: 182,193.14
Step by Step Solution
- Step 1: Write the proportion equation
126,397.26 : 189,821.68 = 121,317.62 : x - Step 2: Convert to fraction form
126,397.26/189,821.68 = 121,317.62/x - Step 3: Cross multiply
126,397.26x = 189,821.68 × 121,317.62 - Step 4: Simplify right side
126,397.26x = 23,028,713,189.60 - Step 5: Solve for x
x = 23,028,713,189.60/126,397.26 - Step 6: Final answer
x = 182,193.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.