Finding the Fourth Proportional to 126,353.52, 174,395.16 and 86,163.21
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Solution
The fourth proportional to 126,353.52, 174,395.16 and 86,163.21 is: 118,923.85
Step by Step Solution
- Step 1: Write the proportion equation
126,353.52 : 174,395.16 = 86,163.21 : x - Step 2: Convert to fraction form
126,353.52/174,395.16 = 86,163.21/x - Step 3: Cross multiply
126,353.52x = 174,395.16 × 86,163.21 - Step 4: Simplify right side
126,353.52x = 15,026,446,794.06 - Step 5: Solve for x
x = 15,026,446,794.06/126,353.52 - Step 6: Final answer
x = 118,923.85
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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.