Finding the Fourth Proportional to 134,751.70, 202,099.20 and 68,129.20
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Solution
The fourth proportional to 134,751.70, 202,099.20 and 68,129.20 is: 102,179.47
Step by Step Solution
- Step 1: Write the proportion equation
134,751.70 : 202,099.20 = 68,129.20 : x - Step 2: Convert to fraction form
134,751.70/202,099.20 = 68,129.20/x - Step 3: Cross multiply
134,751.70x = 202,099.20 × 68,129.20 - Step 4: Simplify right side
134,751.70x = 13,768,856,816.64 - Step 5: Solve for x
x = 13,768,856,816.64/134,751.70 - Step 6: Final answer
x = 102,179.47
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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.