Finding the Fourth Proportional to 154,577.44, 213,316.56 and 87,515.68
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Solution
The fourth proportional to 154,577.44, 213,316.56 and 87,515.68 is: 120,771.46
Step by Step Solution
- Step 1: Write the proportion equation
154,577.44 : 213,316.56 = 87,515.68 : x - Step 2: Convert to fraction form
154,577.44/213,316.56 = 87,515.68/x - Step 3: Cross multiply
154,577.44x = 213,316.56 × 87,515.68 - Step 4: Simplify right side
154,577.44x = 18,668,543,803.66 - Step 5: Solve for x
x = 18,668,543,803.66/154,577.44 - Step 6: Final answer
x = 120,771.46
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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.