Finding the Fourth Proportional to 128,267.01, 192,296.79 and 53,443.47
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Solution
The fourth proportional to 128,267.01, 192,296.79 and 53,443.47 is: 80,121.99
Step by Step Solution
- Step 1: Write the proportion equation
128,267.01 : 192,296.79 = 53,443.47 : x - Step 2: Convert to fraction form
128,267.01/192,296.79 = 53,443.47/x - Step 3: Cross multiply
128,267.01x = 192,296.79 × 53,443.47 - Step 4: Simplify right side
128,267.01x = 10,277,007,727.46 - Step 5: Solve for x
x = 10,277,007,727.46/128,267.01 - Step 6: Final answer
x = 80,121.99
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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.