Finding the Fourth Proportional to 134,762.70, 202,115.70 and 68,140.20
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Solution
The fourth proportional to 134,762.70, 202,115.70 and 68,140.20 is: 102,195.97
Step by Step Solution
- Step 1: Write the proportion equation
134,762.70 : 202,115.70 = 68,140.20 : x - Step 2: Convert to fraction form
134,762.70/202,115.70 = 68,140.20/x - Step 3: Cross multiply
134,762.70x = 202,115.70 × 68,140.20 - Step 4: Simplify right side
134,762.70x = 13,772,204,221.14 - Step 5: Solve for x
x = 13,772,204,221.14/134,762.70 - Step 6: Final answer
x = 102,195.97
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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.