Finding the Fourth Proportional to 121,455.75, 182,212.80 and 38,349.75
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Solution
The fourth proportional to 121,455.75, 182,212.80 and 38,349.75 is: 57,533.84
Step by Step Solution
- Step 1: Write the proportion equation
121,455.75 : 182,212.80 = 38,349.75 : x - Step 2: Convert to fraction form
121,455.75/182,212.80 = 38,349.75/x - Step 3: Cross multiply
121,455.75x = 182,212.80 × 38,349.75 - Step 4: Simplify right side
121,455.75x = 6,987,815,326.80 - Step 5: Solve for x
x = 6,987,815,326.80/121,455.75 - Step 6: Final answer
x = 57,533.84
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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.