Finding the Fourth Proportional to 138,805.80, 208,216.30 and 44,029.14
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Solution
The fourth proportional to 138,805.80, 208,216.30 and 44,029.14 is: 66,046.12
Step by Step Solution
- Step 1: Write the proportion equation
138,805.80 : 208,216.30 = 44,029.14 : x - Step 2: Convert to fraction form
138,805.80/208,216.30 = 44,029.14/x - Step 3: Cross multiply
138,805.80x = 208,216.30 × 44,029.14 - Step 4: Simplify right side
138,805.80x = 9,167,584,622.98 - Step 5: Solve for x
x = 9,167,584,622.98/138,805.80 - Step 6: Final answer
x = 66,046.12
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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.