Finding the Fourth Proportional to 74,108.58, 102,200.75 and 68,604.17
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Solution
The fourth proportional to 74,108.58, 102,200.75 and 68,604.17 is: 94,609.80
Step by Step Solution
- Step 1: Write the proportion equation
74,108.58 : 102,200.75 = 68,604.17 : x - Step 2: Convert to fraction form
74,108.58/102,200.75 = 68,604.17/x - Step 3: Cross multiply
74,108.58x = 102,200.75 × 68,604.17 - Step 4: Simplify right side
74,108.58x = 7,011,397,627.13 - Step 5: Solve for x
x = 7,011,397,627.13/74,108.58 - Step 6: Final answer
x = 94,609.80
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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.