Finding the Fourth Proportional to 134,638.45, 202,121.70 and 68,044.30
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Solution
The fourth proportional to 134,638.45, 202,121.70 and 68,044.30 is: 102,149.35
Step by Step Solution
- Step 1: Write the proportion equation
134,638.45 : 202,121.70 = 68,044.30 : x - Step 2: Convert to fraction form
134,638.45/202,121.70 = 68,044.30/x - Step 3: Cross multiply
134,638.45x = 202,121.70 × 68,044.30 - Step 4: Simplify right side
134,638.45x = 13,753,229,591.31 - Step 5: Solve for x
x = 13,753,229,591.31/134,638.45 - Step 6: Final answer
x = 102,149.35
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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.