Finding the Fourth Proportional to 129,794.60, 194,756.70 and 73,677.80
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Solution
The fourth proportional to 129,794.60, 194,756.70 and 73,677.80 is: 110,553.48
Step by Step Solution
- Step 1: Write the proportion equation
129,794.60 : 194,756.70 = 73,677.80 : x - Step 2: Convert to fraction form
129,794.60/194,756.70 = 73,677.80/x - Step 3: Cross multiply
129,794.60x = 194,756.70 × 73,677.80 - Step 4: Simplify right side
129,794.60x = 14,349,245,191.26 - Step 5: Solve for x
x = 14,349,245,191.26/129,794.60 - Step 6: Final answer
x = 110,553.48
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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.