Finding the Fourth Proportional to 122,165.86, 183,133.86 and 65,921.68
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Solution
The fourth proportional to 122,165.86, 183,133.86 and 65,921.68 is: 98,820.50
Step by Step Solution
- Step 1: Write the proportion equation
122,165.86 : 183,133.86 = 65,921.68 : x - Step 2: Convert to fraction form
122,165.86/183,133.86 = 65,921.68/x - Step 3: Cross multiply
122,165.86x = 183,133.86 × 65,921.68 - Step 4: Simplify right side
122,165.86x = 12,072,491,716.08 - Step 5: Solve for x
x = 12,072,491,716.08/122,165.86 - Step 6: Final answer
x = 98,820.50
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1.5x scale
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.