Finding the Fourth Proportional to 143,073.09, 197,395.20 and 82,635.75
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Solution
The fourth proportional to 143,073.09, 197,395.20 and 82,635.75 is: 114,010.96
Step by Step Solution
- Step 1: Write the proportion equation
143,073.09 : 197,395.20 = 82,635.75 : x - Step 2: Convert to fraction form
143,073.09/197,395.20 = 82,635.75/x - Step 3: Cross multiply
143,073.09x = 197,395.20 × 82,635.75 - Step 4: Simplify right side
143,073.09x = 16,311,900,398.40 - Step 5: Solve for x
x = 16,311,900,398.40/143,073.09 - Step 6: Final answer
x = 114,010.96
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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.