Finding the Fourth Proportional to 103,909.84, 155,871.35 and 43,927.14
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Solution
The fourth proportional to 103,909.84, 155,871.35 and 43,927.14 is: 65,893.50
Step by Step Solution
- Step 1: Write the proportion equation
103,909.84 : 155,871.35 = 43,927.14 : x - Step 2: Convert to fraction form
103,909.84/155,871.35 = 43,927.14/x - Step 3: Cross multiply
103,909.84x = 155,871.35 × 43,927.14 - Step 4: Simplify right side
103,909.84x = 6,846,982,613.44 - Step 5: Solve for x
x = 6,846,982,613.44/103,909.84 - Step 6: Final answer
x = 65,893.50
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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.