Finding the Fourth Proportional to 122,738.63, 169,377.70 and 69,023.63
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Solution
The fourth proportional to 122,738.63, 169,377.70 and 69,023.63 is: 95,251.70
Step by Step Solution
- Step 1: Write the proportion equation
122,738.63 : 169,377.70 = 69,023.63 : x - Step 2: Convert to fraction form
122,738.63/169,377.70 = 69,023.63/x - Step 3: Cross multiply
122,738.63x = 169,377.70 × 69,023.63 - Step 4: Simplify right side
122,738.63x = 11,691,063,695.05 - Step 5: Solve for x
x = 11,691,063,695.05/122,738.63 - Step 6: Final answer
x = 95,251.70
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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.