Finding the Fourth Proportional to 121,272.10, 181,994.55 and 51,201.70
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Solution
The fourth proportional to 121,272.10, 181,994.55 and 51,201.70 is: 76,839.03
Step by Step Solution
- Step 1: Write the proportion equation
121,272.10 : 181,994.55 = 51,201.70 : x - Step 2: Convert to fraction form
121,272.10/181,994.55 = 51,201.70/x - Step 3: Cross multiply
121,272.10x = 181,994.55 × 51,201.70 - Step 4: Simplify right side
121,272.10x = 9,318,430,350.74 - Step 5: Solve for x
x = 9,318,430,350.74/121,272.10 - Step 6: Final answer
x = 76,839.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.