Finding the Fourth Proportional to 101,808.36, 152,427.60 and 76,770.05
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Solution
The fourth proportional to 101,808.36, 152,427.60 and 76,770.05 is: 114,940.20
Step by Step Solution
- Step 1: Write the proportion equation
101,808.36 : 152,427.60 = 76,770.05 : x - Step 2: Convert to fraction form
101,808.36/152,427.60 = 76,770.05/x - Step 3: Cross multiply
101,808.36x = 152,427.60 × 76,770.05 - Step 4: Simplify right side
101,808.36x = 11,701,873,711.24 - Step 5: Solve for x
x = 11,701,873,711.24/101,808.36 - Step 6: Final answer
x = 114,940.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.