Finding the Fourth Proportional to 126,401.22, 174,503.75 and 86,174.09
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Solution
The fourth proportional to 126,401.22, 174,503.75 and 86,174.09 is: 118,968.01
Step by Step Solution
- Step 1: Write the proportion equation
126,401.22 : 174,503.75 = 86,174.09 : x - Step 2: Convert to fraction form
126,401.22/174,503.75 = 86,174.09/x - Step 3: Cross multiply
126,401.22x = 174,503.75 × 86,174.09 - Step 4: Simplify right side
126,401.22x = 15,037,701,857.84 - Step 5: Solve for x
x = 15,037,701,857.84/126,401.22 - Step 6: Final answer
x = 118,968.01
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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.