Finding the Fourth Proportional to 143,175.97, 197,729.82 and 107,309.17
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Solution
The fourth proportional to 143,175.97, 197,729.82 and 107,309.17 is: 148,196.82
Step by Step Solution
- Step 1: Write the proportion equation
143,175.97 : 197,729.82 = 107,309.17 : x - Step 2: Convert to fraction form
143,175.97/197,729.82 = 107,309.17/x - Step 3: Cross multiply
143,175.97x = 197,729.82 × 107,309.17 - Step 4: Simplify right side
143,175.97x = 21,218,222,868.45 - Step 5: Solve for x
x = 21,218,222,868.45/143,175.97 - Step 6: Final answer
x = 148,196.82
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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.