Finding the Fourth Proportional to 133,047.75, 199,465.62 and 76,824.08
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Solution
The fourth proportional to 133,047.75, 199,465.62 and 76,824.08 is: 115,174.91
Step by Step Solution
- Step 1: Write the proportion equation
133,047.75 : 199,465.62 = 76,824.08 : x - Step 2: Convert to fraction form
133,047.75/199,465.62 = 76,824.08/x - Step 3: Cross multiply
133,047.75x = 199,465.62 × 76,824.08 - Step 4: Simplify right side
133,047.75x = 15,323,762,748.13 - Step 5: Solve for x
x = 15,323,762,748.13/133,047.75 - Step 6: Final answer
x = 115,174.91
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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.