Finding the Fourth Proportional to 129,750.40, 194,474.40 and 59,636.80
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Solution
The fourth proportional to 129,750.40, 194,474.40 and 59,636.80 is: 89,385.70
Step by Step Solution
- Step 1: Write the proportion equation
129,750.40 : 194,474.40 = 59,636.80 : x - Step 2: Convert to fraction form
129,750.40/194,474.40 = 59,636.80/x - Step 3: Cross multiply
129,750.40x = 194,474.40 × 59,636.80 - Step 4: Simplify right side
129,750.40x = 11,597,830,897.92 - Step 5: Solve for x
x = 11,597,830,897.92/129,750.40 - Step 6: Final answer
x = 89,385.70
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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.