Finding the Fourth Proportional to 103,717.97, 143,133.68 and 63,431.00
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Solution
The fourth proportional to 103,717.97, 143,133.68 and 63,431.00 is: 87,536.54
Step by Step Solution
- Step 1: Write the proportion equation
103,717.97 : 143,133.68 = 63,431.00 : x - Step 2: Convert to fraction form
103,717.97/143,133.68 = 63,431.00/x - Step 3: Cross multiply
103,717.97x = 143,133.68 × 63,431.00 - Step 4: Simplify right side
103,717.97x = 9,079,111,423.26 - Step 5: Solve for x
x = 9,079,111,423.26/103,717.97 - Step 6: Final answer
x = 87,536.54
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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.