Finding the Fourth Proportional to 135,326.20, 202,989.30 and 65,212.60
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Solution
The fourth proportional to 135,326.20, 202,989.30 and 65,212.60 is: 97,818.90
Step by Step Solution
- Step 1: Write the proportion equation
135,326.20 : 202,989.30 = 65,212.60 : x - Step 2: Convert to fraction form
135,326.20/202,989.30 = 65,212.60/x - Step 3: Cross multiply
135,326.20x = 202,989.30 × 65,212.60 - Step 4: Simplify right side
135,326.20x = 13,237,460,025.18 - Step 5: Solve for x
x = 13,237,460,025.18/135,326.20 - Step 6: Final answer
x = 97,818.90
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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.