Finding the Fourth Proportional to 192,918.42, 266,138.78 and 124,958.07
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Solution
The fourth proportional to 192,918.42, 266,138.78 and 124,958.07 is: 172,384.72
Step by Step Solution
- Step 1: Write the proportion equation
192,918.42 : 266,138.78 = 124,958.07 : x - Step 2: Convert to fraction form
192,918.42/266,138.78 = 124,958.07/x - Step 3: Cross multiply
192,918.42x = 266,138.78 × 124,958.07 - Step 4: Simplify right side
192,918.42x = 33,256,187,676.16 - Step 5: Solve for x
x = 33,256,187,676.16/192,918.42 - Step 6: Final answer
x = 172,384.72
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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.