Finding the Fourth Proportional to 106,138.44, 146,474.64 and 58,393.80
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Solution
The fourth proportional to 106,138.44, 146,474.64 and 58,393.80 is: 80,585.42
Step by Step Solution
- Step 1: Write the proportion equation
106,138.44 : 146,474.64 = 58,393.80 : x - Step 2: Convert to fraction form
106,138.44/146,474.64 = 58,393.80/x - Step 3: Cross multiply
106,138.44x = 146,474.64 × 58,393.80 - Step 4: Simplify right side
106,138.44x = 8,553,210,833.23 - Step 5: Solve for x
x = 8,553,210,833.23/106,138.44 - Step 6: Final answer
x = 80,585.42
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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.