Finding the Fourth Proportional to 122,331.06, 169,149.87 and 106,584.66
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Solution
The fourth proportional to 122,331.06, 169,149.87 and 106,584.66 is: 147,376.97
Step by Step Solution
- Step 1: Write the proportion equation
122,331.06 : 169,149.87 = 106,584.66 : x - Step 2: Convert to fraction form
122,331.06/169,149.87 = 106,584.66/x - Step 3: Cross multiply
122,331.06x = 169,149.87 × 106,584.66 - Step 4: Simplify right side
122,331.06x = 18,028,781,382.99 - Step 5: Solve for x
x = 18,028,781,382.99/122,331.06 - Step 6: Final answer
x = 147,376.97
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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.