Finding the Fourth Proportional to 121,823.12, 182,688.60 and 51,735.44
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Solution
The fourth proportional to 121,823.12, 182,688.60 and 51,735.44 is: 77,583.59
Step by Step Solution
- Step 1: Write the proportion equation
121,823.12 : 182,688.60 = 51,735.44 : x - Step 2: Convert to fraction form
121,823.12/182,688.60 = 51,735.44/x - Step 3: Cross multiply
121,823.12x = 182,688.60 × 51,735.44 - Step 4: Simplify right side
121,823.12x = 9,451,475,103.98 - Step 5: Solve for x
x = 9,451,475,103.98/121,823.12 - Step 6: Final answer
x = 77,583.59
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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.