Finding the Fourth Proportional to 127,637.28, 176,122.08 and 71,040.96
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Solution
The fourth proportional to 127,637.28, 176,122.08 and 71,040.96 is: 98,026.86
Step by Step Solution
- Step 1: Write the proportion equation
127,637.28 : 176,122.08 = 71,040.96 : x - Step 2: Convert to fraction form
127,637.28/176,122.08 = 71,040.96/x - Step 3: Cross multiply
127,637.28x = 176,122.08 × 71,040.96 - Step 4: Simplify right side
127,637.28x = 12,511,881,640.40 - Step 5: Solve for x
x = 12,511,881,640.40/127,637.28 - Step 6: Final answer
x = 98,026.86
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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.