Finding the Fourth Proportional to 132,133.92, 182,496.30 and 87,013.68
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Solution
The fourth proportional to 132,133.92, 182,496.30 and 87,013.68 is: 120,178.64
Step by Step Solution
- Step 1: Write the proportion equation
132,133.92 : 182,496.30 = 87,013.68 : x - Step 2: Convert to fraction form
132,133.92/182,496.30 = 87,013.68/x - Step 3: Cross multiply
132,133.92x = 182,496.30 × 87,013.68 - Step 4: Simplify right side
132,133.92x = 15,879,674,649.38 - Step 5: Solve for x
x = 15,879,674,649.38/132,133.92 - Step 6: Final answer
x = 120,178.64
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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.