Finding the Fourth Proportional to 107,540.88, 161,344.14 and 54,987.28
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Solution
The fourth proportional to 107,540.88, 161,344.14 and 54,987.28 is: 82,497.70
Step by Step Solution
- Step 1: Write the proportion equation
107,540.88 : 161,344.14 = 54,987.28 : x - Step 2: Convert to fraction form
107,540.88/161,344.14 = 54,987.28/x - Step 3: Cross multiply
107,540.88x = 161,344.14 × 54,987.28 - Step 4: Simplify right side
107,540.88x = 8,871,875,402.54 - Step 5: Solve for x
x = 8,871,875,402.54/107,540.88 - Step 6: Final answer
x = 82,497.70
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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.