Finding the Fourth Proportional to 121,368.30, 167,560.02 and 107,902.28
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Solution
The fourth proportional to 121,368.30, 167,560.02 and 107,902.28 is: 148,968.94
Step by Step Solution
- Step 1: Write the proportion equation
121,368.30 : 167,560.02 = 107,902.28 : x - Step 2: Convert to fraction form
121,368.30/167,560.02 = 107,902.28/x - Step 3: Cross multiply
121,368.30x = 167,560.02 × 107,902.28 - Step 4: Simplify right side
121,368.30x = 18,080,107,357.05 - Step 5: Solve for x
x = 18,080,107,357.05/121,368.30 - Step 6: Final answer
x = 148,968.94
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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.