Finding the Fourth Proportional to 122,149.02, 168,562.20 and 68,437.26
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Solution
The fourth proportional to 122,149.02, 168,562.20 and 68,437.26 is: 94,441.49
Step by Step Solution
- Step 1: Write the proportion equation
122,149.02 : 168,562.20 = 68,437.26 : x - Step 2: Convert to fraction form
122,149.02/168,562.20 = 68,437.26/x - Step 3: Cross multiply
122,149.02x = 168,562.20 × 68,437.26 - Step 4: Simplify right side
122,149.02x = 11,535,935,107.57 - Step 5: Solve for x
x = 11,535,935,107.57/122,149.02 - Step 6: Final answer
x = 94,441.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.