Finding the Fourth Proportional to 121,354.84, 182,015.25 and 51,217.75
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Solution
The fourth proportional to 121,354.84, 182,015.25 and 51,217.75 is: 76,819.45
Step by Step Solution
- Step 1: Write the proportion equation
121,354.84 : 182,015.25 = 51,217.75 : x - Step 2: Convert to fraction form
121,354.84/182,015.25 = 51,217.75/x - Step 3: Cross multiply
121,354.84x = 182,015.25 × 51,217.75 - Step 4: Simplify right side
121,354.84x = 9,322,411,570.69 - Step 5: Solve for x
x = 9,322,411,570.69/121,354.84 - Step 6: Final answer
x = 76,819.45
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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.