Finding the Fourth Proportional to 135,122.40, 186,521.49 and 120,950.64
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Solution
The fourth proportional to 135,122.40, 186,521.49 and 120,950.64 is: 166,958.95
Step by Step Solution
- Step 1: Write the proportion equation
135,122.40 : 186,521.49 = 120,950.64 : x - Step 2: Convert to fraction form
135,122.40/186,521.49 = 120,950.64/x - Step 3: Cross multiply
135,122.40x = 186,521.49 × 120,950.64 - Step 4: Simplify right side
135,122.40x = 22,559,893,589.25 - Step 5: Solve for x
x = 22,559,893,589.25/135,122.40 - Step 6: Final answer
x = 166,958.95
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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.