Finding the Fourth Proportional to 131,767.36, 197,579.94 and 68,431.23
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Solution
The fourth proportional to 131,767.36, 197,579.94 and 68,431.23 is: 102,609.92
Step by Step Solution
- Step 1: Write the proportion equation
131,767.36 : 197,579.94 = 68,431.23 : x - Step 2: Convert to fraction form
131,767.36/197,579.94 = 68,431.23/x - Step 3: Cross multiply
131,767.36x = 197,579.94 × 68,431.23 - Step 4: Simplify right side
131,767.36x = 13,520,637,329.63 - Step 5: Solve for x
x = 13,520,637,329.63/131,767.36 - Step 6: Final answer
x = 102,609.92
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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.