Finding the Fourth Proportional to 133,039.10, 199,615.35 and 69,907.70
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Solution
The fourth proportional to 133,039.10, 199,615.35 and 69,907.70 is: 104,891.34
Step by Step Solution
- Step 1: Write the proportion equation
133,039.10 : 199,615.35 = 69,907.70 : x - Step 2: Convert to fraction form
133,039.10/199,615.35 = 69,907.70/x - Step 3: Cross multiply
133,039.10x = 199,615.35 × 69,907.70 - Step 4: Simplify right side
133,039.10x = 13,954,650,003.20 - Step 5: Solve for x
x = 13,954,650,003.20/133,039.10 - Step 6: Final answer
x = 104,891.34
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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.