Finding the Fourth Proportional to 135,999.99, 204,034.59 and 79,887.56
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Solution
The fourth proportional to 135,999.99, 204,034.59 and 79,887.56 is: 119,851.66
Step by Step Solution
- Step 1: Write the proportion equation
135,999.99 : 204,034.59 = 79,887.56 : x - Step 2: Convert to fraction form
135,999.99/204,034.59 = 79,887.56/x - Step 3: Cross multiply
135,999.99x = 204,034.59 × 79,887.56 - Step 4: Simplify right side
135,999.99x = 16,299,824,530.53 - Step 5: Solve for x
x = 16,299,824,530.53/135,999.99 - Step 6: Final answer
x = 119,851.66
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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.