Finding the Fourth Proportional to 145,765.44, 201,206.61 and 85,355.46
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Solution
The fourth proportional to 145,765.44, 201,206.61 and 85,355.46 is: 117,819.99
Step by Step Solution
- Step 1: Write the proportion equation
145,765.44 : 201,206.61 = 85,355.46 : x - Step 2: Convert to fraction form
145,765.44/201,206.61 = 85,355.46/x - Step 3: Cross multiply
145,765.44x = 201,206.61 × 85,355.46 - Step 4: Simplify right side
145,765.44x = 17,174,082,751.59 - Step 5: Solve for x
x = 17,174,082,751.59/145,765.44 - Step 6: Final answer
x = 117,819.99
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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.