Finding the Fourth Proportional to 149,661.09, 224,530.53 and 74,778.21
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Solution
The fourth proportional to 149,661.09, 224,530.53 and 74,778.21 is: 112,186.75
Step by Step Solution
- Step 1: Write the proportion equation
149,661.09 : 224,530.53 = 74,778.21 : x - Step 2: Convert to fraction form
149,661.09/224,530.53 = 74,778.21/x - Step 3: Cross multiply
149,661.09x = 224,530.53 × 74,778.21 - Step 4: Simplify right side
149,661.09x = 16,789,991,123.75 - Step 5: Solve for x
x = 16,789,991,123.75/149,661.09 - Step 6: Final answer
x = 112,186.75
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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.