Finding the Fourth Proportional to 136,311.61, 204,509.12 and 69,798.80
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Solution
The fourth proportional to 136,311.61, 204,509.12 and 69,798.80 is: 104,719.56
Step by Step Solution
- Step 1: Write the proportion equation
136,311.61 : 204,509.12 = 69,798.80 : x - Step 2: Convert to fraction form
136,311.61/204,509.12 = 69,798.80/x - Step 3: Cross multiply
136,311.61x = 204,509.12 × 69,798.80 - Step 4: Simplify right side
136,311.61x = 14,274,491,165.06 - Step 5: Solve for x
x = 14,274,491,165.06/136,311.61 - Step 6: Final answer
x = 104,719.56
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1.5x scale
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.