Finding the Fourth Proportional to 128,459.41, 192,675.25 and 33,699.08
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Solution
The fourth proportional to 128,459.41, 192,675.25 and 33,699.08 is: 50,544.99
Step by Step Solution
- Step 1: Write the proportion equation
128,459.41 : 192,675.25 = 33,699.08 : x - Step 2: Convert to fraction form
128,459.41/192,675.25 = 33,699.08/x - Step 3: Cross multiply
128,459.41x = 192,675.25 × 33,699.08 - Step 4: Simplify right side
128,459.41x = 6,492,979,187.58 - Step 5: Solve for x
x = 6,492,979,187.58/128,459.41 - Step 6: Final answer
x = 50,544.99
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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.