Finding the Fourth Proportional to 168,078.10, 252,161.70 and 73,267.60
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Solution
The fourth proportional to 168,078.10, 252,161.70 and 73,267.60 is: 109,920.82
Step by Step Solution
- Step 1: Write the proportion equation
168,078.10 : 252,161.70 = 73,267.60 : x - Step 2: Convert to fraction form
168,078.10/252,161.70 = 73,267.60/x - Step 3: Cross multiply
168,078.10x = 252,161.70 × 73,267.60 - Step 4: Simplify right side
168,078.10x = 18,475,282,570.92 - Step 5: Solve for x
x = 18,475,282,570.92/168,078.10 - Step 6: Final answer
x = 109,920.82
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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.