Finding the Fourth Proportional to 132,138.08, 198,237.40 and 57,270.80
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Solution
The fourth proportional to 132,138.08, 198,237.40 and 57,270.80 is: 85,919.32
Step by Step Solution
- Step 1: Write the proportion equation
132,138.08 : 198,237.40 = 57,270.80 : x - Step 2: Convert to fraction form
132,138.08/198,237.40 = 57,270.80/x - Step 3: Cross multiply
132,138.08x = 198,237.40 × 57,270.80 - Step 4: Simplify right side
132,138.08x = 11,353,214,487.92 - Step 5: Solve for x
x = 11,353,214,487.92/132,138.08 - Step 6: Final answer
x = 85,919.32
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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.