Finding the Fourth Proportional to 103,853.76, 155,714.07 and 43,865.99
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Solution
The fourth proportional to 103,853.76, 155,714.07 and 43,865.99 is: 65,770.86
Step by Step Solution
- Step 1: Write the proportion equation
103,853.76 : 155,714.07 = 43,865.99 : x - Step 2: Convert to fraction form
103,853.76/155,714.07 = 43,865.99/x - Step 3: Cross multiply
103,853.76x = 155,714.07 × 43,865.99 - Step 4: Simplify right side
103,853.76x = 6,830,551,058.91 - Step 5: Solve for x
x = 6,830,551,058.91/103,853.76 - Step 6: Final answer
x = 65,770.86
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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.