Finding the Fourth Proportional to 129,817.60, 194,812.80 and 59,660.80
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Solution
The fourth proportional to 129,817.60, 194,812.80 and 59,660.80 is: 89,530.91
Step by Step Solution
- Step 1: Write the proportion equation
129,817.60 : 194,812.80 = 59,660.80 : x - Step 2: Convert to fraction form
129,817.60/194,812.80 = 59,660.80/x - Step 3: Cross multiply
129,817.60x = 194,812.80 × 59,660.80 - Step 4: Simplify right side
129,817.60x = 11,622,687,498.24 - Step 5: Solve for x
x = 11,622,687,498.24/129,817.60 - Step 6: Final answer
x = 89,530.91
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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.