Finding the Fourth Proportional to 109,845.10, 164,638.05 and 82,110.70
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Solution
The fourth proportional to 109,845.10, 164,638.05 and 82,110.70 is: 123,069.17
Step by Step Solution
- Step 1: Write the proportion equation
109,845.10 : 164,638.05 = 82,110.70 : x - Step 2: Convert to fraction form
109,845.10/164,638.05 = 82,110.70/x - Step 3: Cross multiply
109,845.10x = 164,638.05 × 82,110.70 - Step 4: Simplify right side
109,845.10x = 13,518,545,532.14 - Step 5: Solve for x
x = 13,518,545,532.14/109,845.10 - Step 6: Final answer
x = 123,069.17
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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.