Finding the Fourth Proportional to 129,169.60, 193,768.53 and 43,842.07
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Solution
The fourth proportional to 129,169.60, 193,768.53 and 43,842.07 is: 65,767.90
Step by Step Solution
- Step 1: Write the proportion equation
129,169.60 : 193,768.53 = 43,842.07 : x - Step 2: Convert to fraction form
129,169.60/193,768.53 = 43,842.07/x - Step 3: Cross multiply
129,169.60x = 193,768.53 × 43,842.07 - Step 4: Simplify right side
129,169.60x = 8,495,213,456.06 - Step 5: Solve for x
x = 8,495,213,456.06/129,169.60 - Step 6: Final answer
x = 65,767.90
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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.