Finding the Fourth Proportional to 122,521.20, 183,436.20 and 119,065.20
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Solution
The fourth proportional to 122,521.20, 183,436.20 and 119,065.20 is: 178,261.95
Step by Step Solution
- Step 1: Write the proportion equation
122,521.20 : 183,436.20 = 119,065.20 : x - Step 2: Convert to fraction form
122,521.20/183,436.20 = 119,065.20/x - Step 3: Cross multiply
122,521.20x = 183,436.20 × 119,065.20 - Step 4: Simplify right side
122,521.20x = 21,840,867,840.24 - Step 5: Solve for x
x = 21,840,867,840.24/122,521.20 - Step 6: Final answer
x = 178,261.95
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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.