Finding the Fourth Proportional to 127,982.19, 176,603.16 and 71,397.21
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Solution
The fourth proportional to 127,982.19, 176,603.16 and 71,397.21 is: 98,521.31
Step by Step Solution
- Step 1: Write the proportion equation
127,982.19 : 176,603.16 = 71,397.21 : x - Step 2: Convert to fraction form
127,982.19/176,603.16 = 71,397.21/x - Step 3: Cross multiply
127,982.19x = 176,603.16 × 71,397.21 - Step 4: Simplify right side
127,982.19x = 12,608,972,901.18 - Step 5: Solve for x
x = 12,608,972,901.18/127,982.19 - Step 6: Final answer
x = 98,521.31
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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.