Finding the Fourth Proportional to 125,753.36, 173,559.85 and 74,078.80
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Solution
The fourth proportional to 125,753.36, 173,559.85 and 74,078.80 is: 102,240.65
Step by Step Solution
- Step 1: Write the proportion equation
125,753.36 : 173,559.85 = 74,078.80 : x - Step 2: Convert to fraction form
125,753.36/173,559.85 = 74,078.80/x - Step 3: Cross multiply
125,753.36x = 173,559.85 × 74,078.80 - Step 4: Simplify right side
125,753.36x = 12,857,104,982.28 - Step 5: Solve for x
x = 12,857,104,982.28/125,753.36 - Step 6: Final answer
x = 102,240.65
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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.