Finding the Fourth Proportional to 121,134.44, 167,144.74 and 111,335.44
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Solution
The fourth proportional to 121,134.44, 167,144.74 and 111,335.44 is: 153,623.80
Step by Step Solution
- Step 1: Write the proportion equation
121,134.44 : 167,144.74 = 111,335.44 : x - Step 2: Convert to fraction form
121,134.44/167,144.74 = 111,335.44/x - Step 3: Cross multiply
121,134.44x = 167,144.74 × 111,335.44 - Step 4: Simplify right side
121,134.44x = 18,609,133,171.59 - Step 5: Solve for x
x = 18,609,133,171.59/121,134.44 - Step 6: Final answer
x = 153,623.80
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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.