Finding the Fourth Proportional to 122,515.20, 183,427.20 and 119,059.20
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Solution
The fourth proportional to 122,515.20, 183,427.20 and 119,059.20 is: 178,252.95
Step by Step Solution
- Step 1: Write the proportion equation
122,515.20 : 183,427.20 = 119,059.20 : x - Step 2: Convert to fraction form
122,515.20/183,427.20 = 119,059.20/x - Step 3: Cross multiply
122,515.20x = 183,427.20 × 119,059.20 - Step 4: Simplify right side
122,515.20x = 21,838,695,690.24 - Step 5: Solve for x
x = 21,838,695,690.24/122,515.20 - Step 6: Final answer
x = 178,252.95
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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.