Finding the Fourth Proportional to 122,740.62, 169,380.45 and 69,025.62
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Solution
The fourth proportional to 122,740.62, 169,380.45 and 69,025.62 is: 95,254.45
Step by Step Solution
- Step 1: Write the proportion equation
122,740.62 : 169,380.45 = 69,025.62 : x - Step 2: Convert to fraction form
122,740.62/169,380.45 = 69,025.62/x - Step 3: Cross multiply
122,740.62x = 169,380.45 × 69,025.62 - Step 4: Simplify right side
122,740.62x = 11,691,590,577.13 - Step 5: Solve for x
x = 11,691,590,577.13/122,740.62 - Step 6: Final answer
x = 95,254.45
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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.