Finding the Fourth Proportional to 122,102.08, 183,433.91 and 86,161.30
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Solution
The fourth proportional to 122,102.08, 183,433.91 and 86,161.30 is: 129,440.09
Step by Step Solution
- Step 1: Write the proportion equation
122,102.08 : 183,433.91 = 86,161.30 : x - Step 2: Convert to fraction form
122,102.08/183,433.91 = 86,161.30/x - Step 3: Cross multiply
122,102.08x = 183,433.91 × 86,161.30 - Step 4: Simplify right side
122,102.08x = 15,804,904,149.68 - Step 5: Solve for x
x = 15,804,904,149.68/122,102.08 - Step 6: Final answer
x = 129,440.09
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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.