Finding the Fourth Proportional to 146,721.11, 219,935.84 and 87,467.99
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Solution
The fourth proportional to 146,721.11, 219,935.84 and 87,467.99 is: 131,115.05
Step by Step Solution
- Step 1: Write the proportion equation
146,721.11 : 219,935.84 = 87,467.99 : x - Step 2: Convert to fraction form
146,721.11/219,935.84 = 87,467.99/x - Step 3: Cross multiply
146,721.11x = 219,935.84 × 87,467.99 - Step 4: Simplify right side
146,721.11x = 19,237,344,972.75 - Step 5: Solve for x
x = 19,237,344,972.75/146,721.11 - Step 6: Final answer
x = 131,115.05
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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.