Finding the Fourth Proportional to 122,929.26, 169,641.97 and 69,214.51
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Solution
The fourth proportional to 122,929.26, 169,641.97 and 69,214.51 is: 95,515.79
Step by Step Solution
- Step 1: Write the proportion equation
122,929.26 : 169,641.97 = 69,214.51 : x - Step 2: Convert to fraction form
122,929.26/169,641.97 = 69,214.51/x - Step 3: Cross multiply
122,929.26x = 169,641.97 × 69,214.51 - Step 4: Simplify right side
122,929.26x = 11,741,685,828.98 - Step 5: Solve for x
x = 11,741,685,828.98/122,929.26 - Step 6: Final answer
x = 95,515.79
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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.