Finding the Fourth Proportional to 129,417.20, 194,153.40 and 73,283.60
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Solution
The fourth proportional to 129,417.20, 194,153.40 and 73,283.60 is: 109,941.03
Step by Step Solution
- Step 1: Write the proportion equation
129,417.20 : 194,153.40 = 73,283.60 : x - Step 2: Convert to fraction form
129,417.20/194,153.40 = 73,283.60/x - Step 3: Cross multiply
129,417.20x = 194,153.40 × 73,283.60 - Step 4: Simplify right side
129,417.20x = 14,228,260,104.24 - Step 5: Solve for x
x = 14,228,260,104.24/129,417.20 - Step 6: Final answer
x = 109,941.03
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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.