Finding the Fourth Proportional to 135,688.40, 203,532.60 and 88,449.20
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Solution
The fourth proportional to 135,688.40, 203,532.60 and 88,449.20 is: 132,673.80
Step by Step Solution
- Step 1: Write the proportion equation
135,688.40 : 203,532.60 = 88,449.20 : x - Step 2: Convert to fraction form
135,688.40/203,532.60 = 88,449.20/x - Step 3: Cross multiply
135,688.40x = 203,532.60 × 88,449.20 - Step 4: Simplify right side
135,688.40x = 18,002,295,643.92 - Step 5: Solve for x
x = 18,002,295,643.92/135,688.40 - Step 6: Final answer
x = 132,673.80
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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.