Finding the Fourth Proportional to 83,688.44, 126,108.35 and 69,222.92
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Solution
The fourth proportional to 83,688.44, 126,108.35 and 69,222.92 is: 104,310.56
Step by Step Solution
- Step 1: Write the proportion equation
83,688.44 : 126,108.35 = 69,222.92 : x - Step 2: Convert to fraction form
83,688.44/126,108.35 = 69,222.92/x - Step 3: Cross multiply
83,688.44x = 126,108.35 × 69,222.92 - Step 4: Simplify right side
83,688.44x = 8,729,588,223.38 - Step 5: Solve for x
x = 8,729,588,223.38/83,688.44 - Step 6: Final answer
x = 104,310.56
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.