Finding the Fourth Proportional to 76,455.97, 114,613.26 and 70,149.71
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Solution
The fourth proportional to 76,455.97, 114,613.26 and 70,149.71 is: 105,159.70
Step by Step Solution
- Step 1: Write the proportion equation
76,455.97 : 114,613.26 = 70,149.71 : x - Step 2: Convert to fraction form
76,455.97/114,613.26 = 70,149.71/x - Step 3: Cross multiply
76,455.97x = 114,613.26 × 70,149.71 - Step 4: Simplify right side
76,455.97x = 8,040,086,951.15 - Step 5: Solve for x
x = 8,040,086,951.15/76,455.97 - Step 6: Final answer
x = 105,159.70
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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.