Finding the Fourth Proportional to 121,389.84, 182,082.60 and 46,489.68
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Solution
The fourth proportional to 121,389.84, 182,082.60 and 46,489.68 is: 69,733.69
Step by Step Solution
- Step 1: Write the proportion equation
121,389.84 : 182,082.60 = 46,489.68 : x - Step 2: Convert to fraction form
121,389.84/182,082.60 = 46,489.68/x - Step 3: Cross multiply
121,389.84x = 182,082.60 × 46,489.68 - Step 4: Simplify right side
121,389.84x = 8,464,961,807.57 - Step 5: Solve for x
x = 8,464,961,807.57/121,389.84 - Step 6: Final answer
x = 69,733.69
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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.