Finding the Fourth Proportional to 105,983.65, 146,257.41 and 58,240.09
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Solution
The fourth proportional to 105,983.65, 146,257.41 and 58,240.09 is: 80,371.31
Step by Step Solution
- Step 1: Write the proportion equation
105,983.65 : 146,257.41 = 58,240.09 : x - Step 2: Convert to fraction form
105,983.65/146,257.41 = 58,240.09/x - Step 3: Cross multiply
105,983.65x = 146,257.41 × 58,240.09 - Step 4: Simplify right side
105,983.65x = 8,518,044,721.57 - Step 5: Solve for x
x = 8,518,044,721.57/105,983.65 - Step 6: Final answer
x = 80,371.31
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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.