Finding the Fourth Proportional to 127,122.11, 175,430.21 and 69,761.88
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Solution
The fourth proportional to 127,122.11, 175,430.21 and 69,761.88 is: 96,272.33
Step by Step Solution
- Step 1: Write the proportion equation
127,122.11 : 175,430.21 = 69,761.88 : x - Step 2: Convert to fraction form
127,122.11/175,430.21 = 69,761.88/x - Step 3: Cross multiply
127,122.11x = 175,430.21 × 69,761.88 - Step 4: Simplify right side
127,122.11x = 12,238,341,402.98 - Step 5: Solve for x
x = 12,238,341,402.98/127,122.11 - Step 6: Final answer
x = 96,272.33
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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.