Finding the Fourth Proportional to 99,107.93, 136,769.94 and 53,786.31
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Solution
The fourth proportional to 99,107.93, 136,769.94 and 53,786.31 is: 74,225.65
Step by Step Solution
- Step 1: Write the proportion equation
99,107.93 : 136,769.94 = 53,786.31 : x - Step 2: Convert to fraction form
99,107.93/136,769.94 = 53,786.31/x - Step 3: Cross multiply
99,107.93x = 136,769.94 × 53,786.31 - Step 4: Simplify right side
99,107.93x = 7,356,350,391.52 - Step 5: Solve for x
x = 7,356,350,391.52/99,107.93 - Step 6: Final answer
x = 74,225.65
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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.