Finding the Fourth Proportional to 110,137.14, 151,989.27 and 65,425.14
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Solution
The fourth proportional to 110,137.14, 151,989.27 and 65,425.14 is: 90,286.70
Step by Step Solution
- Step 1: Write the proportion equation
110,137.14 : 151,989.27 = 65,425.14 : x - Step 2: Convert to fraction form
110,137.14/151,989.27 = 65,425.14/x - Step 3: Cross multiply
110,137.14x = 151,989.27 × 65,425.14 - Step 4: Simplify right side
110,137.14x = 9,943,919,268.25 - Step 5: Solve for x
x = 9,943,919,268.25/110,137.14 - Step 6: Final answer
x = 90,286.70
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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.