Finding the Fourth Proportional to 143,431.32, 214,998.75 and 54,660.99
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Solution
The fourth proportional to 143,431.32, 214,998.75 and 54,660.99 is: 81,935.00
Step by Step Solution
- Step 1: Write the proportion equation
143,431.32 : 214,998.75 = 54,660.99 : x - Step 2: Convert to fraction form
143,431.32/214,998.75 = 54,660.99/x - Step 3: Cross multiply
143,431.32x = 214,998.75 × 54,660.99 - Step 4: Simplify right side
143,431.32x = 11,752,044,523.76 - Step 5: Solve for x
x = 11,752,044,523.76/143,431.32 - Step 6: Final answer
x = 81,935.00
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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.