Finding the Fourth Proportional to 122,150.91, 168,571.55 and 68,434.75
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Solution
The fourth proportional to 122,150.91, 168,571.55 and 68,434.75 is: 94,441.80
Step by Step Solution
- Step 1: Write the proportion equation
122,150.91 : 168,571.55 = 68,434.75 : x - Step 2: Convert to fraction form
122,150.91/168,571.55 = 68,434.75/x - Step 3: Cross multiply
122,150.91x = 168,571.55 × 68,434.75 - Step 4: Simplify right side
122,150.91x = 11,536,151,881.36 - Step 5: Solve for x
x = 11,536,151,881.36/122,150.91 - Step 6: Final answer
x = 94,441.80
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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.