Finding the Fourth Proportional to 113,679.74, 156,879.04 and 62,694.49
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Solution
The fourth proportional to 113,679.74, 156,879.04 and 62,694.49 is: 86,518.95
Step by Step Solution
- Step 1: Write the proportion equation
113,679.74 : 156,879.04 = 62,694.49 : x - Step 2: Convert to fraction form
113,679.74/156,879.04 = 62,694.49/x - Step 3: Cross multiply
113,679.74x = 156,879.04 × 62,694.49 - Step 4: Simplify right side
113,679.74x = 9,835,451,404.49 - Step 5: Solve for x
x = 9,835,451,404.49/113,679.74 - Step 6: Final answer
x = 86,518.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.