Finding the Fourth Proportional to 128,311.84, 192,412.74 and 44,080.48
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Solution
The fourth proportional to 128,311.84, 192,412.74 and 44,080.48 is: 66,101.82
Step by Step Solution
- Step 1: Write the proportion equation
128,311.84 : 192,412.74 = 44,080.48 : x - Step 2: Convert to fraction form
128,311.84/192,412.74 = 44,080.48/x - Step 3: Cross multiply
128,311.84x = 192,412.74 × 44,080.48 - Step 4: Simplify right side
128,311.84x = 8,481,645,937.32 - Step 5: Solve for x
x = 8,481,645,937.32/128,311.84 - Step 6: Final answer
x = 66,101.82
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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.