Finding the Fourth Proportional to 135,640.92, 187,176.84 and 75,207.96
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Solution
The fourth proportional to 135,640.92, 187,176.84 and 75,207.96 is: 103,782.75
Step by Step Solution
- Step 1: Write the proportion equation
135,640.92 : 187,176.84 = 75,207.96 : x - Step 2: Convert to fraction form
135,640.92/187,176.84 = 75,207.96/x - Step 3: Cross multiply
135,640.92x = 187,176.84 × 75,207.96 - Step 4: Simplify right side
135,640.92x = 14,077,188,295.65 - Step 5: Solve for x
x = 14,077,188,295.65/135,640.92 - Step 6: Final answer
x = 103,782.75
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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.