Finding the Fourth Proportional to 125,138.47, 187,668.48 and 40,879.44
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Solution
The fourth proportional to 125,138.47, 187,668.48 and 40,879.44 is: 61,306.35
Step by Step Solution
- Step 1: Write the proportion equation
125,138.47 : 187,668.48 = 40,879.44 : x - Step 2: Convert to fraction form
125,138.47/187,668.48 = 40,879.44/x - Step 3: Cross multiply
125,138.47x = 187,668.48 × 40,879.44 - Step 4: Simplify right side
125,138.47x = 7,671,782,368.05 - Step 5: Solve for x
x = 7,671,782,368.05/125,138.47 - Step 6: Final answer
x = 61,306.35
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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.