Finding the Fourth Proportional to 129,865.80, 194,798.70 and 46,729.80
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Solution
The fourth proportional to 129,865.80, 194,798.70 and 46,729.80 is: 70,094.70
Step by Step Solution
- Step 1: Write the proportion equation
129,865.80 : 194,798.70 = 46,729.80 : x - Step 2: Convert to fraction form
129,865.80/194,798.70 = 46,729.80/x - Step 3: Cross multiply
129,865.80x = 194,798.70 × 46,729.80 - Step 4: Simplify right side
129,865.80x = 9,102,904,291.26 - Step 5: Solve for x
x = 9,102,904,291.26/129,865.80 - Step 6: Final answer
x = 70,094.70
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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.