Finding the Fourth Proportional to 122,530.53, 169,072.26 and 76,584.75
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Solution
The fourth proportional to 122,530.53, 169,072.26 and 76,584.75 is: 105,674.53
Step by Step Solution
- Step 1: Write the proportion equation
122,530.53 : 169,072.26 = 76,584.75 : x - Step 2: Convert to fraction form
122,530.53/169,072.26 = 76,584.75/x - Step 3: Cross multiply
122,530.53x = 169,072.26 × 76,584.75 - Step 4: Simplify right side
122,530.53x = 12,948,356,764.04 - Step 5: Solve for x
x = 12,948,356,764.04/122,530.53 - Step 6: Final answer
x = 105,674.53
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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.