Finding the Fourth Proportional to 122,083.71, 183,128.00 and 80,230.61
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Solution
The fourth proportional to 122,083.71, 183,128.00 and 80,230.61 is: 120,347.50
Step by Step Solution
- Step 1: Write the proportion equation
122,083.71 : 183,128.00 = 80,230.61 : x - Step 2: Convert to fraction form
122,083.71/183,128.00 = 80,230.61/x - Step 3: Cross multiply
122,083.71x = 183,128.00 × 80,230.61 - Step 4: Simplify right side
122,083.71x = 14,692,469,831.29 - Step 5: Solve for x
x = 14,692,469,831.29/122,083.71 - Step 6: Final answer
x = 120,347.50
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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.