Finding the Fourth Proportional to 122,239.70, 183,356.91 and 74,219.66
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Solution
The fourth proportional to 122,239.70, 183,356.91 and 74,219.66 is: 111,327.88
Step by Step Solution
- Step 1: Write the proportion equation
122,239.70 : 183,356.91 = 74,219.66 : x - Step 2: Convert to fraction form
122,239.70/183,356.91 = 74,219.66/x - Step 3: Cross multiply
122,239.70x = 183,356.91 × 74,219.66 - Step 4: Simplify right side
122,239.70x = 13,608,686,602.07 - Step 5: Solve for x
x = 13,608,686,602.07/122,239.70 - Step 6: Final answer
x = 111,327.88
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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.