Finding the Fourth Proportional to 135,163.36, 186,548.52 and 78,608.08
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Solution
The fourth proportional to 135,163.36, 186,548.52 and 78,608.08 is: 108,492.58
Step by Step Solution
- Step 1: Write the proportion equation
135,163.36 : 186,548.52 = 78,608.08 : x - Step 2: Convert to fraction form
135,163.36/186,548.52 = 78,608.08/x - Step 3: Cross multiply
135,163.36x = 186,548.52 × 78,608.08 - Step 4: Simplify right side
135,163.36x = 14,664,220,984.04 - Step 5: Solve for x
x = 14,664,220,984.04/135,163.36 - Step 6: Final answer
x = 108,492.58
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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.