Finding the Fourth Proportional to 122,688.54, 169,310.91 and 68,973.09
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Solution
The fourth proportional to 122,688.54, 169,310.91 and 68,973.09 is: 95,183.27
Step by Step Solution
- Step 1: Write the proportion equation
122,688.54 : 169,310.91 = 68,973.09 : x - Step 2: Convert to fraction form
122,688.54/169,310.91 = 68,973.09/x - Step 3: Cross multiply
122,688.54x = 169,310.91 × 68,973.09 - Step 4: Simplify right side
122,688.54x = 11,677,896,633.41 - Step 5: Solve for x
x = 11,677,896,633.41/122,688.54 - Step 6: Final answer
x = 95,183.27
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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.