Finding the Fourth Proportional to 106,392.24, 146,821.68 and 57,993.92
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Solution
The fourth proportional to 106,392.24, 146,821.68 and 57,993.92 is: 80,031.82
Step by Step Solution
- Step 1: Write the proportion equation
106,392.24 : 146,821.68 = 57,993.92 : x - Step 2: Convert to fraction form
106,392.24/146,821.68 = 57,993.92/x - Step 3: Cross multiply
106,392.24x = 146,821.68 × 57,993.92 - Step 4: Simplify right side
106,392.24x = 8,514,764,764.19 - Step 5: Solve for x
x = 8,514,764,764.19/106,392.24 - Step 6: Final answer
x = 80,031.82
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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.