Finding the Fourth Proportional to 129,750.24, 194,455.80 and 66,516.84
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Solution
The fourth proportional to 129,750.24, 194,455.80 and 66,516.84 is: 99,688.33
Step by Step Solution
- Step 1: Write the proportion equation
129,750.24 : 194,455.80 = 66,516.84 : x - Step 2: Convert to fraction form
129,750.24/194,455.80 = 66,516.84/x - Step 3: Cross multiply
129,750.24x = 194,455.80 × 66,516.84 - Step 4: Simplify right side
129,750.24x = 12,934,585,335.67 - Step 5: Solve for x
x = 12,934,585,335.67/129,750.24 - Step 6: Final answer
x = 99,688.33
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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.