Finding the Fourth Proportional to 146,728.56, 202,486.68 and 79,660.72
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Solution
The fourth proportional to 146,728.56, 202,486.68 and 79,660.72 is: 109,932.48
Step by Step Solution
- Step 1: Write the proportion equation
146,728.56 : 202,486.68 = 79,660.72 : x - Step 2: Convert to fraction form
146,728.56/202,486.68 = 79,660.72/x - Step 3: Cross multiply
146,728.56x = 202,486.68 × 79,660.72 - Step 4: Simplify right side
146,728.56x = 16,130,234,719.21 - Step 5: Solve for x
x = 16,130,234,719.21/146,728.56 - Step 6: Final answer
x = 109,932.48
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1.5x scale
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.