Finding the Fourth Proportional to 108,133.92, 161,201.34 and 106,429.68
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Solution
The fourth proportional to 108,133.92, 161,201.34 and 106,429.68 is: 158,660.73
Step by Step Solution
- Step 1: Write the proportion equation
108,133.92 : 161,201.34 = 106,429.68 : x - Step 2: Convert to fraction form
108,133.92/161,201.34 = 106,429.68/x - Step 3: Cross multiply
108,133.92x = 161,201.34 × 106,429.68 - Step 4: Simplify right side
108,133.92x = 17,156,607,031.77 - Step 5: Solve for x
x = 17,156,607,031.77/108,133.92 - Step 6: Final answer
x = 158,660.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.