Finding the Fourth Proportional to 106,638.63, 159,819.18 and 43,385.02
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Solution
The fourth proportional to 106,638.63, 159,819.18 and 43,385.02 is: 65,021.07
Step by Step Solution
- Step 1: Write the proportion equation
106,638.63 : 159,819.18 = 43,385.02 : x - Step 2: Convert to fraction form
106,638.63/159,819.18 = 43,385.02/x - Step 3: Cross multiply
106,638.63x = 159,819.18 × 43,385.02 - Step 4: Simplify right side
106,638.63x = 6,933,757,758.44 - Step 5: Solve for x
x = 6,933,757,758.44/106,638.63 - Step 6: Final answer
x = 65,021.07
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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.