Finding the Fourth Proportional to 122,738.87, 169,378.53 and 69,024.26
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Solution
The fourth proportional to 122,738.87, 169,378.53 and 69,024.26 is: 95,252.85
Step by Step Solution
- Step 1: Write the proportion equation
122,738.87 : 169,378.53 = 69,024.26 : x - Step 2: Convert to fraction form
122,738.87/169,378.53 = 69,024.26/x - Step 3: Cross multiply
122,738.87x = 169,378.53 × 69,024.26 - Step 4: Simplify right side
122,738.87x = 11,691,227,693.14 - Step 5: Solve for x
x = 11,691,227,693.14/122,738.87 - Step 6: Final answer
x = 95,252.85
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1.5x scale
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.