Finding the Fourth Proportional to 121,576.28, 167,803.26 and 71,291.48
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Solution
The fourth proportional to 121,576.28, 167,803.26 and 71,291.48 is: 98,398.66
Step by Step Solution
- Step 1: Write the proportion equation
121,576.28 : 167,803.26 = 71,291.48 : x - Step 2: Convert to fraction form
121,576.28/167,803.26 = 71,291.48/x - Step 3: Cross multiply
121,576.28x = 167,803.26 × 71,291.48 - Step 4: Simplify right side
121,576.28x = 11,962,942,754.22 - Step 5: Solve for x
x = 11,962,942,754.22/121,576.28 - Step 6: Final answer
x = 98,398.66
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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.