Finding the Fourth Proportional to 83,149.55, 124,874.66 and 76,817.62
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Solution
The fourth proportional to 83,149.55, 124,874.66 and 76,817.62 is: 115,365.31
Step by Step Solution
- Step 1: Write the proportion equation
83,149.55 : 124,874.66 = 76,817.62 : x - Step 2: Convert to fraction form
83,149.55/124,874.66 = 76,817.62/x - Step 3: Cross multiply
83,149.55x = 124,874.66 × 76,817.62 - Step 4: Simplify right side
83,149.55x = 9,592,573,825.23 - Step 5: Solve for x
x = 9,592,573,825.23/83,149.55 - Step 6: Final answer
x = 115,365.31
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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.