Finding the Fourth Proportional to 122,133.98, 183,409.07 and 79,512.00
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Solution
The fourth proportional to 122,133.98, 183,409.07 and 79,512.00 is: 119,403.49
Step by Step Solution
- Step 1: Write the proportion equation
122,133.98 : 183,409.07 = 79,512.00 : x - Step 2: Convert to fraction form
122,133.98/183,409.07 = 79,512.00/x - Step 3: Cross multiply
122,133.98x = 183,409.07 × 79,512.00 - Step 4: Simplify right side
122,133.98x = 14,583,222,995.08 - Step 5: Solve for x
x = 14,583,222,995.08/122,133.98 - Step 6: Final answer
x = 119,403.49
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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.