Finding the Fourth Proportional to 122,005.07, 183,039.16 and 71,446.80
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Solution
The fourth proportional to 122,005.07, 183,039.16 and 71,446.80 is: 107,188.68
Step by Step Solution
- Step 1: Write the proportion equation
122,005.07 : 183,039.16 = 71,446.80 : x - Step 2: Convert to fraction form
122,005.07/183,039.16 = 71,446.80/x - Step 3: Cross multiply
122,005.07x = 183,039.16 × 71,446.80 - Step 4: Simplify right side
122,005.07x = 13,077,562,256.69 - Step 5: Solve for x
x = 13,077,562,256.69/122,005.07 - Step 6: Final answer
x = 107,188.68
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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.