Finding the Fourth Proportional to 83,765.70, 125,517.03 and 73,202.49
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Solution
The fourth proportional to 83,765.70, 125,517.03 and 73,202.49 is: 109,688.80
Step by Step Solution
- Step 1: Write the proportion equation
83,765.70 : 125,517.03 = 73,202.49 : x - Step 2: Convert to fraction form
83,765.70/125,517.03 = 73,202.49/x - Step 3: Cross multiply
83,765.70x = 125,517.03 × 73,202.49 - Step 4: Simplify right side
83,765.70x = 9,188,159,133.40 - Step 5: Solve for x
x = 9,188,159,133.40/83,765.70 - Step 6: Final answer
x = 109,688.80
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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.