Finding the Fourth Proportional to 126,854.19, 190,302.90 and 43,728.75
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Solution
The fourth proportional to 126,854.19, 190,302.90 and 43,728.75 is: 65,600.58
Step by Step Solution
- Step 1: Write the proportion equation
126,854.19 : 190,302.90 = 43,728.75 : x - Step 2: Convert to fraction form
126,854.19/190,302.90 = 43,728.75/x - Step 3: Cross multiply
126,854.19x = 190,302.90 × 43,728.75 - Step 4: Simplify right side
126,854.19x = 8,321,707,938.38 - Step 5: Solve for x
x = 8,321,707,938.38/126,854.19 - Step 6: Final answer
x = 65,600.58
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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.