Finding the Fourth Proportional to 121,314.93, 167,415.69 and 66,864.09
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Solution
The fourth proportional to 121,314.93, 167,415.69 and 66,864.09 is: 92,273.04
Step by Step Solution
- Step 1: Write the proportion equation
121,314.93 : 167,415.69 = 66,864.09 : x - Step 2: Convert to fraction form
121,314.93/167,415.69 = 66,864.09/x - Step 3: Cross multiply
121,314.93x = 167,415.69 × 66,864.09 - Step 4: Simplify right side
121,314.93x = 11,194,097,763.57 - Step 5: Solve for x
x = 11,194,097,763.57/121,314.93 - Step 6: Final answer
x = 92,273.04
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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.