Finding the Fourth Proportional to 122,585.73, 169,159.20 and 68,879.70
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Solution
The fourth proportional to 122,585.73, 169,159.20 and 68,879.70 is: 95,048.86
Step by Step Solution
- Step 1: Write the proportion equation
122,585.73 : 169,159.20 = 68,879.70 : x - Step 2: Convert to fraction form
122,585.73/169,159.20 = 68,879.70/x - Step 3: Cross multiply
122,585.73x = 169,159.20 × 68,879.70 - Step 4: Simplify right side
122,585.73x = 11,651,633,758.05 - Step 5: Solve for x
x = 11,651,633,758.05/122,585.73 - Step 6: Final answer
x = 95,048.86
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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.