Finding the Fourth Proportional to 122,145.93, 168,560.37 and 68,431.46
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Solution
The fourth proportional to 122,145.93, 168,560.37 and 68,431.46 is: 94,434.84
Step by Step Solution
- Step 1: Write the proportion equation
122,145.93 : 168,560.37 = 68,431.46 : x - Step 2: Convert to fraction form
122,145.93/168,560.37 = 68,431.46/x - Step 3: Cross multiply
122,145.93x = 168,560.37 × 68,431.46 - Step 4: Simplify right side
122,145.93x = 11,534,831,374.44 - Step 5: Solve for x
x = 11,534,831,374.44/122,145.93 - Step 6: Final answer
x = 94,434.84
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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.