Finding the Fourth Proportional to 129,116.64, 193,625.76 and 50,221.44
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Solution
The fourth proportional to 129,116.64, 193,625.76 and 50,221.44 is: 75,313.02
Step by Step Solution
- Step 1: Write the proportion equation
129,116.64 : 193,625.76 = 50,221.44 : x - Step 2: Convert to fraction form
129,116.64/193,625.76 = 50,221.44/x - Step 3: Cross multiply
129,116.64x = 193,625.76 × 50,221.44 - Step 4: Simplify right side
129,116.64x = 9,724,164,488.29 - Step 5: Solve for x
x = 9,724,164,488.29/129,116.64 - Step 6: Final answer
x = 75,313.02
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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.