Finding the Fourth Proportional to 122,405.88, 183,591.52 and 39,289.08
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Solution
The fourth proportional to 122,405.88, 183,591.52 and 39,289.08 is: 58,928.07
Step by Step Solution
- Step 1: Write the proportion equation
122,405.88 : 183,591.52 = 39,289.08 : x - Step 2: Convert to fraction form
122,405.88/183,591.52 = 39,289.08/x - Step 3: Cross multiply
122,405.88x = 183,591.52 × 39,289.08 - Step 4: Simplify right side
122,405.88x = 7,213,141,916.60 - Step 5: Solve for x
x = 7,213,141,916.60/122,405.88 - Step 6: Final answer
x = 58,928.07
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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.