Finding the Fourth Proportional to 99,107.68, 136,769.60 and 53,786.06
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Solution
The fourth proportional to 99,107.68, 136,769.60 and 53,786.06 is: 74,225.31
Step by Step Solution
- Step 1: Write the proportion equation
99,107.68 : 136,769.60 = 53,786.06 : x - Step 2: Convert to fraction form
99,107.68/136,769.60 = 53,786.06/x - Step 3: Cross multiply
99,107.68x = 136,769.60 × 53,786.06 - Step 4: Simplify right side
99,107.68x = 7,356,297,911.78 - Step 5: Solve for x
x = 7,356,297,911.78/99,107.68 - Step 6: Final answer
x = 74,225.31
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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.