Finding the Fourth Proportional to 135,464.54, 186,932.84 and 75,031.65
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Solution
The fourth proportional to 135,464.54, 186,932.84 and 75,031.65 is: 103,539.12
Step by Step Solution
- Step 1: Write the proportion equation
135,464.54 : 186,932.84 = 75,031.65 : x - Step 2: Convert to fraction form
135,464.54/186,932.84 = 75,031.65/x - Step 3: Cross multiply
135,464.54x = 186,932.84 × 75,031.65 - Step 4: Simplify right side
135,464.54x = 14,025,879,049.23 - Step 5: Solve for x
x = 14,025,879,049.23/135,464.54 - Step 6: Final answer
x = 103,539.12
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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.