Finding the Fourth Proportional to 122,201.70, 183,302.55 and 107,427.30
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Solution
The fourth proportional to 122,201.70, 183,302.55 and 107,427.30 is: 161,140.95
Step by Step Solution
- Step 1: Write the proportion equation
122,201.70 : 183,302.55 = 107,427.30 : x - Step 2: Convert to fraction form
122,201.70/183,302.55 = 107,427.30/x - Step 3: Cross multiply
122,201.70x = 183,302.55 × 107,427.30 - Step 4: Simplify right side
122,201.70x = 19,691,698,029.62 - Step 5: Solve for x
x = 19,691,698,029.62/122,201.70 - Step 6: Final answer
x = 161,140.95
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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.