Finding the Fourth Proportional to 127,689.08, 176,205.20 and 73,202.18
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Solution
The fourth proportional to 127,689.08, 176,205.20 and 73,202.18 is: 101,015.72
Step by Step Solution
- Step 1: Write the proportion equation
127,689.08 : 176,205.20 = 73,202.18 : x - Step 2: Convert to fraction form
127,689.08/176,205.20 = 73,202.18/x - Step 3: Cross multiply
127,689.08x = 176,205.20 × 73,202.18 - Step 4: Simplify right side
127,689.08x = 12,898,603,520.30 - Step 5: Solve for x
x = 12,898,603,520.30/127,689.08 - Step 6: Final answer
x = 101,015.72
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1.5x scale
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.