Finding the Fourth Proportional to 138,425.58, 207,603.81 and 44,958.06
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Solution
The fourth proportional to 138,425.58, 207,603.81 and 44,958.06 is: 67,425.87
Step by Step Solution
- Step 1: Write the proportion equation
138,425.58 : 207,603.81 = 44,958.06 : x - Step 2: Convert to fraction form
138,425.58/207,603.81 = 44,958.06/x - Step 3: Cross multiply
138,425.58x = 207,603.81 × 44,958.06 - Step 4: Simplify right side
138,425.58x = 9,333,464,546.21 - Step 5: Solve for x
x = 9,333,464,546.21/138,425.58 - Step 6: Final answer
x = 67,425.87
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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.