Finding the Fourth Proportional to 130,760.46, 180,382.50 and 85,464.99
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Solution
The fourth proportional to 130,760.46, 180,382.50 and 85,464.99 is: 117,897.94
Step by Step Solution
- Step 1: Write the proportion equation
130,760.46 : 180,382.50 = 85,464.99 : x - Step 2: Convert to fraction form
130,760.46/180,382.50 = 85,464.99/x - Step 3: Cross multiply
130,760.46x = 180,382.50 × 85,464.99 - Step 4: Simplify right side
130,760.46x = 15,416,388,558.68 - Step 5: Solve for x
x = 15,416,388,558.68/130,760.46 - Step 6: Final answer
x = 117,897.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.