Finding the Fourth Proportional to 121,087.18, 167,097.69 and 70,102.06
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Solution
The fourth proportional to 121,087.18, 167,097.69 and 70,102.06 is: 96,739.33
Step by Step Solution
- Step 1: Write the proportion equation
121,087.18 : 167,097.69 = 70,102.06 : x - Step 2: Convert to fraction form
121,087.18/167,097.69 = 70,102.06/x - Step 3: Cross multiply
121,087.18x = 167,097.69 × 70,102.06 - Step 4: Simplify right side
121,087.18x = 11,713,892,290.24 - Step 5: Solve for x
x = 11,713,892,290.24/121,087.18 - Step 6: Final answer
x = 96,739.33
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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.