Finding the Fourth Proportional to 80,176.04, 120,121.44 and 68,369.48
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Solution
The fourth proportional to 80,176.04, 120,121.44 and 68,369.48 is: 102,432.60
Step by Step Solution
- Step 1: Write the proportion equation
80,176.04 : 120,121.44 = 68,369.48 : x - Step 2: Convert to fraction form
80,176.04/120,121.44 = 68,369.48/x - Step 3: Cross multiply
80,176.04x = 120,121.44 × 68,369.48 - Step 4: Simplify right side
80,176.04x = 8,212,640,389.65 - Step 5: Solve for x
x = 8,212,640,389.65/80,176.04 - Step 6: Final answer
x = 102,432.60
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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.