Finding the Fourth Proportional to 121,285.10, 182,014.05 and 51,214.70
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Solution
The fourth proportional to 121,285.10, 182,014.05 and 51,214.70 is: 76,858.53
Step by Step Solution
- Step 1: Write the proportion equation
121,285.10 : 182,014.05 = 51,214.70 : x - Step 2: Convert to fraction form
121,285.10/182,014.05 = 51,214.70/x - Step 3: Cross multiply
121,285.10x = 182,014.05 × 51,214.70 - Step 4: Simplify right side
121,285.10x = 9,321,794,966.54 - Step 5: Solve for x
x = 9,321,794,966.54/121,285.10 - Step 6: Final answer
x = 76,858.53
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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.