Finding the Fourth Proportional to 122,983.58, 169,722.57 and 68,535.80
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Solution
The fourth proportional to 122,983.58, 169,722.57 and 68,535.80 is: 94,582.32
Step by Step Solution
- Step 1: Write the proportion equation
122,983.58 : 169,722.57 = 68,535.80 : x - Step 2: Convert to fraction form
122,983.58/169,722.57 = 68,535.80/x - Step 3: Cross multiply
122,983.58x = 169,722.57 × 68,535.80 - Step 4: Simplify right side
122,983.58x = 11,632,072,113.01 - Step 5: Solve for x
x = 11,632,072,113.01/122,983.58 - Step 6: Final answer
x = 94,582.32
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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.