Finding the Fourth Proportional to 126,718.02, 174,584.09 and 104,021.06
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Solution
The fourth proportional to 126,718.02, 174,584.09 and 104,021.06 is: 143,313.65
Step by Step Solution
- Step 1: Write the proportion equation
126,718.02 : 174,584.09 = 104,021.06 : x - Step 2: Convert to fraction form
126,718.02/174,584.09 = 104,021.06/x - Step 3: Cross multiply
126,718.02x = 174,584.09 × 104,021.06 - Step 4: Simplify right side
126,718.02x = 18,160,421,228.02 - Step 5: Solve for x
x = 18,160,421,228.02/126,718.02 - Step 6: Final answer
x = 143,313.65
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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.