Finding the Fourth Proportional to 129,296.16, 193,785.66 and 61,750.80
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Solution
The fourth proportional to 129,296.16, 193,785.66 and 61,750.80 is: 92,550.46
Step by Step Solution
- Step 1: Write the proportion equation
129,296.16 : 193,785.66 = 61,750.80 : x - Step 2: Convert to fraction form
129,296.16/193,785.66 = 61,750.80/x - Step 3: Cross multiply
129,296.16x = 193,785.66 × 61,750.80 - Step 4: Simplify right side
129,296.16x = 11,966,419,533.53 - Step 5: Solve for x
x = 11,966,419,533.53/129,296.16 - Step 6: Final answer
x = 92,550.46
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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.