Finding the Fourth Proportional to 109,212.57, 163,680.35 and 49,176.99
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Solution
The fourth proportional to 109,212.57, 163,680.35 and 49,176.99 is: 73,703.12
Step by Step Solution
- Step 1: Write the proportion equation
109,212.57 : 163,680.35 = 49,176.99 : x - Step 2: Convert to fraction form
109,212.57/163,680.35 = 49,176.99/x - Step 3: Cross multiply
109,212.57x = 163,680.35 × 49,176.99 - Step 4: Simplify right side
109,212.57x = 8,049,306,689.26 - Step 5: Solve for x
x = 8,049,306,689.26/109,212.57 - Step 6: Final answer
x = 73,703.12
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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.