Finding the Fourth Proportional to 121,909.24, 167,860.92 and 106,716.88
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Solution
The fourth proportional to 121,909.24, 167,860.92 and 106,716.88 is: 146,942.05
Step by Step Solution
- Step 1: Write the proportion equation
121,909.24 : 167,860.92 = 106,716.88 : x - Step 2: Convert to fraction form
121,909.24/167,860.92 = 106,716.88/x - Step 3: Cross multiply
121,909.24x = 167,860.92 × 106,716.88 - Step 4: Simplify right side
121,909.24x = 17,913,593,656.33 - Step 5: Solve for x
x = 17,913,593,656.33/121,909.24 - Step 6: Final answer
x = 146,942.05
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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.