Finding the Fourth Proportional to 203,641.13, 281,031.18 and 113,003.75
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Solution
The fourth proportional to 203,641.13, 281,031.18 and 113,003.75 is: 155,948.74
Step by Step Solution
- Step 1: Write the proportion equation
203,641.13 : 281,031.18 = 113,003.75 : x - Step 2: Convert to fraction form
203,641.13/281,031.18 = 113,003.75/x - Step 3: Cross multiply
203,641.13x = 281,031.18 × 113,003.75 - Step 4: Simplify right side
203,641.13x = 31,757,577,206.93 - Step 5: Solve for x
x = 31,757,577,206.93/203,641.13 - Step 6: Final answer
x = 155,948.74
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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.