Finding the Fourth Proportional to 111,660.98, 154,110.52 and 81,545.99
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Solution
The fourth proportional to 111,660.98, 154,110.52 and 81,545.99 is: 112,546.88
Step by Step Solution
- Step 1: Write the proportion equation
111,660.98 : 154,110.52 = 81,545.99 : x - Step 2: Convert to fraction form
111,660.98/154,110.52 = 81,545.99/x - Step 3: Cross multiply
111,660.98x = 154,110.52 × 81,545.99 - Step 4: Simplify right side
111,660.98x = 12,567,095,350.41 - Step 5: Solve for x
x = 12,567,095,350.41/111,660.98 - Step 6: Final answer
x = 112,546.88
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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.