Finding the Fourth Proportional to 122,349.63, 168,745.10 and 101,091.99
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Solution
The fourth proportional to 122,349.63, 168,745.10 and 101,091.99 is: 139,426.47
Step by Step Solution
- Step 1: Write the proportion equation
122,349.63 : 168,745.10 = 101,091.99 : x - Step 2: Convert to fraction form
122,349.63/168,745.10 = 101,091.99/x - Step 3: Cross multiply
122,349.63x = 168,745.10 × 101,091.99 - Step 4: Simplify right side
122,349.63x = 17,058,777,456.29 - Step 5: Solve for x
x = 17,058,777,456.29/122,349.63 - Step 6: Final answer
x = 139,426.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.