Finding the Fourth Proportional to 122,701.74, 183,966.42 and 47,758.68
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Solution
The fourth proportional to 122,701.74, 183,966.42 and 47,758.68 is: 71,604.47
Step by Step Solution
- Step 1: Write the proportion equation
122,701.74 : 183,966.42 = 47,758.68 : x - Step 2: Convert to fraction form
122,701.74/183,966.42 = 47,758.68/x - Step 3: Cross multiply
122,701.74x = 183,966.42 × 47,758.68 - Step 4: Simplify right side
122,701.74x = 8,785,993,383.53 - Step 5: Solve for x
x = 8,785,993,383.53/122,701.74 - Step 6: Final answer
x = 71,604.47
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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.