Finding the Fourth Proportional to 128,455.83, 192,434.39 and 94,660.50
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Solution
The fourth proportional to 128,455.83, 192,434.39 and 94,660.50 is: 141,806.99
Step by Step Solution
- Step 1: Write the proportion equation
128,455.83 : 192,434.39 = 94,660.50 : x - Step 2: Convert to fraction form
128,455.83/192,434.39 = 94,660.50/x - Step 3: Cross multiply
128,455.83x = 192,434.39 × 94,660.50 - Step 4: Simplify right side
128,455.83x = 18,215,935,101.29 - Step 5: Solve for x
x = 18,215,935,101.29/128,455.83 - Step 6: Final answer
x = 141,806.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.