Finding the Fourth Proportional to 128,336.44, 192,489.95 and 33,575.77
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Solution
The fourth proportional to 128,336.44, 192,489.95 and 33,575.77 is: 50,359.80
Step by Step Solution
- Step 1: Write the proportion equation
128,336.44 : 192,489.95 = 33,575.77 : x - Step 2: Convert to fraction form
128,336.44/192,489.95 = 33,575.77/x - Step 3: Cross multiply
128,336.44x = 192,489.95 × 33,575.77 - Step 4: Simplify right side
128,336.44x = 6,462,997,158.18 - Step 5: Solve for x
x = 6,462,997,158.18/128,336.44 - Step 6: Final answer
x = 50,359.80
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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.