Finding the Fourth Proportional to 143,180.73, 197,634.74 and 100,863.09
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Solution
The fourth proportional to 143,180.73, 197,634.74 and 100,863.09 is: 139,223.00
Step by Step Solution
- Step 1: Write the proportion equation
143,180.73 : 197,634.74 = 100,863.09 : x - Step 2: Convert to fraction form
143,180.73/197,634.74 = 100,863.09/x - Step 3: Cross multiply
143,180.73x = 197,634.74 × 100,863.09 - Step 4: Simplify right side
143,180.73x = 19,934,050,063.43 - Step 5: Solve for x
x = 19,934,050,063.43/143,180.73 - Step 6: Final answer
x = 139,223.00
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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.