Finding the Fourth Proportional to 132,549.18, 182,912.42 and 72,120.08
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Solution
The fourth proportional to 132,549.18, 182,912.42 and 72,120.08 is: 99,522.75
Step by Step Solution
- Step 1: Write the proportion equation
132,549.18 : 182,912.42 = 72,120.08 : x - Step 2: Convert to fraction form
132,549.18/182,912.42 = 72,120.08/x - Step 3: Cross multiply
132,549.18x = 182,912.42 × 72,120.08 - Step 4: Simplify right side
132,549.18x = 13,191,658,363.39 - Step 5: Solve for x
x = 13,191,658,363.39/132,549.18 - Step 6: Final answer
x = 99,522.75
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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.