Finding the Fourth Proportional to 146,208.68, 201,768.64 and 79,140.68
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Solution
The fourth proportional to 146,208.68, 201,768.64 and 79,140.68 is: 109,214.50
Step by Step Solution
- Step 1: Write the proportion equation
146,208.68 : 201,768.64 = 79,140.68 : x - Step 2: Convert to fraction form
146,208.68/201,768.64 = 79,140.68/x - Step 3: Cross multiply
146,208.68x = 201,768.64 × 79,140.68 - Step 4: Simplify right side
146,208.68x = 15,968,107,372.28 - Step 5: Solve for x
x = 15,968,107,372.28/146,208.68 - Step 6: Final answer
x = 109,214.50
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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.