Finding the Fourth Proportional to 103,649.94, 155,432.97 and 40,461.12
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Solution
The fourth proportional to 103,649.94, 155,432.97 and 40,461.12 is: 60,675.31
Step by Step Solution
- Step 1: Write the proportion equation
103,649.94 : 155,432.97 = 40,461.12 : x - Step 2: Convert to fraction form
103,649.94/155,432.97 = 40,461.12/x - Step 3: Cross multiply
103,649.94x = 155,432.97 × 40,461.12 - Step 4: Simplify right side
103,649.94x = 6,288,992,051.13 - Step 5: Solve for x
x = 6,288,992,051.13/103,649.94 - Step 6: Final answer
x = 60,675.31
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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.