Finding the Fourth Proportional to 125,273.12, 172,883.97 and 74,316.02
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Solution
The fourth proportional to 125,273.12, 172,883.97 and 74,316.02 is: 102,560.30
Step by Step Solution
- Step 1: Write the proportion equation
125,273.12 : 172,883.97 = 74,316.02 : x - Step 2: Convert to fraction form
125,273.12/172,883.97 = 74,316.02/x - Step 3: Cross multiply
125,273.12x = 172,883.97 × 74,316.02 - Step 4: Simplify right side
125,273.12x = 12,848,047,707.78 - Step 5: Solve for x
x = 12,848,047,707.78/125,273.12 - Step 6: Final answer
x = 102,560.30
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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.