Finding the Fourth Proportional to 129,704.57, 193,267.40 and 115,555.88
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Solution
The fourth proportional to 129,704.57, 193,267.40 and 115,555.88 is: 172,185.02
Step by Step Solution
- Step 1: Write the proportion equation
129,704.57 : 193,267.40 = 115,555.88 : x - Step 2: Convert to fraction form
129,704.57/193,267.40 = 115,555.88/x - Step 3: Cross multiply
129,704.57x = 193,267.40 × 115,555.88 - Step 4: Simplify right side
129,704.57x = 22,333,183,371.53 - Step 5: Solve for x
x = 22,333,183,371.53/129,704.57 - Step 6: Final answer
x = 172,185.02
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.