Finding the Fourth Proportional to 129,693.44, 194,370.62 and 66,459.98
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Solution
The fourth proportional to 129,693.44, 194,370.62 and 66,459.98 is: 99,603.09
Step by Step Solution
- Step 1: Write the proportion equation
129,693.44 : 194,370.62 = 66,459.98 : x - Step 2: Convert to fraction form
129,693.44/194,370.62 = 66,459.98/x - Step 3: Cross multiply
129,693.44x = 194,370.62 × 66,459.98 - Step 4: Simplify right side
129,693.44x = 12,917,867,517.79 - Step 5: Solve for x
x = 12,917,867,517.79/129,693.44 - Step 6: Final answer
x = 99,603.09
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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.