Finding the Fourth Proportional to 122,659.64, 169,275.09 and 68,944.49
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Solution
The fourth proportional to 122,659.64, 169,275.09 and 68,944.49 is: 95,146.09
Step by Step Solution
- Step 1: Write the proportion equation
122,659.64 : 169,275.09 = 68,944.49 : x - Step 2: Convert to fraction form
122,659.64/169,275.09 = 68,944.49/x - Step 3: Cross multiply
122,659.64x = 169,275.09 × 68,944.49 - Step 4: Simplify right side
122,659.64x = 11,670,584,749.75 - Step 5: Solve for x
x = 11,670,584,749.75/122,659.64 - Step 6: Final answer
x = 95,146.09
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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.