Finding the Fourth Proportional to 144,907.57, 217,079.94 and 81,534.49
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Solution
The fourth proportional to 144,907.57, 217,079.94 and 81,534.49 is: 122,143.39
Step by Step Solution
- Step 1: Write the proportion equation
144,907.57 : 217,079.94 = 81,534.49 : x - Step 2: Convert to fraction form
144,907.57/217,079.94 = 81,534.49/x - Step 3: Cross multiply
144,907.57x = 217,079.94 × 81,534.49 - Step 4: Simplify right side
144,907.57x = 17,699,502,197.13 - Step 5: Solve for x
x = 17,699,502,197.13/144,907.57 - Step 6: Final answer
x = 122,143.39
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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.