Finding the Fourth Proportional to 149,201.36, 205,885.32 and 85,524.56
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Solution
The fourth proportional to 149,201.36, 205,885.32 and 85,524.56 is: 118,016.70
Step by Step Solution
- Step 1: Write the proportion equation
149,201.36 : 205,885.32 = 85,524.56 : x - Step 2: Convert to fraction form
149,201.36/205,885.32 = 85,524.56/x - Step 3: Cross multiply
149,201.36x = 205,885.32 × 85,524.56 - Step 4: Simplify right side
149,201.36x = 17,608,251,403.46 - Step 5: Solve for x
x = 17,608,251,403.46/149,201.36 - Step 6: Final answer
x = 118,016.70
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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.