Finding the Fourth Proportional to 168,715.76, 232,799.00 and 100,760.00
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Solution
The fourth proportional to 168,715.76, 232,799.00 and 100,760.00 is: 139,031.62
Step by Step Solution
- Step 1: Write the proportion equation
168,715.76 : 232,799.00 = 100,760.00 : x - Step 2: Convert to fraction form
168,715.76/232,799.00 = 100,760.00/x - Step 3: Cross multiply
168,715.76x = 232,799.00 × 100,760.00 - Step 4: Simplify right side
168,715.76x = 23,456,825,572.21 - Step 5: Solve for x
x = 23,456,825,572.21/168,715.76 - Step 6: Final answer
x = 139,031.62
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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.