Finding the Fourth Proportional to 136,021.76, 204,156.48 and 69,507.68
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Solution
The fourth proportional to 136,021.76, 204,156.48 and 69,507.68 is: 104,324.80
Step by Step Solution
- Step 1: Write the proportion equation
136,021.76 : 204,156.48 = 69,507.68 : x - Step 2: Convert to fraction form
136,021.76/204,156.48 = 69,507.68/x - Step 3: Cross multiply
136,021.76x = 204,156.48 × 69,507.68 - Step 4: Simplify right side
136,021.76x = 14,190,443,281.77 - Step 5: Solve for x
x = 14,190,443,281.77/136,021.76 - Step 6: Final answer
x = 104,324.80
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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.