Finding the Fourth Proportional to 126,073.44, 174,062.34 and 78,391.62
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Solution
The fourth proportional to 126,073.44, 174,062.34 and 78,391.62 is: 108,230.80
Step by Step Solution
- Step 1: Write the proportion equation
126,073.44 : 174,062.34 = 78,391.62 : x - Step 2: Convert to fraction form
126,073.44/174,062.34 = 78,391.62/x - Step 3: Cross multiply
126,073.44x = 174,062.34 × 78,391.62 - Step 4: Simplify right side
126,073.44x = 13,645,028,813.59 - Step 5: Solve for x
x = 13,645,028,813.59/126,073.44 - Step 6: Final answer
x = 108,230.80
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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.