Finding the Fourth Proportional to 103,754.31, 155,680.07 and 51,135.09
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Solution
The fourth proportional to 103,754.31, 155,680.07 and 51,135.09 is: 76,726.59
Step by Step Solution
- Step 1: Write the proportion equation
103,754.31 : 155,680.07 = 51,135.09 : x - Step 2: Convert to fraction form
103,754.31/155,680.07 = 51,135.09/x - Step 3: Cross multiply
103,754.31x = 155,680.07 × 51,135.09 - Step 4: Simplify right side
103,754.31x = 7,960,714,390.66 - Step 5: Solve for x
x = 7,960,714,390.66/103,754.31 - Step 6: Final answer
x = 76,726.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.