Finding the Fourth Proportional to 122,969.29, 169,705.88 and 68,529.91
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Solution
The fourth proportional to 122,969.29, 169,705.88 and 68,529.91 is: 94,575.88
Step by Step Solution
- Step 1: Write the proportion equation
122,969.29 : 169,705.88 = 68,529.91 : x - Step 2: Convert to fraction form
122,969.29/169,705.88 = 68,529.91/x - Step 3: Cross multiply
122,969.29x = 169,705.88 × 68,529.91 - Step 4: Simplify right side
122,969.29x = 11,629,928,682.87 - Step 5: Solve for x
x = 11,629,928,682.87/122,969.29 - Step 6: Final answer
x = 94,575.88
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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.