Finding the Fourth Proportional to 142,186.74, 213,130.26 and 47,391.63
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Solution
The fourth proportional to 142,186.74, 213,130.26 and 47,391.63 is: 71,037.50
Step by Step Solution
- Step 1: Write the proportion equation
142,186.74 : 213,130.26 = 47,391.63 : x - Step 2: Convert to fraction form
142,186.74/213,130.26 = 47,391.63/x - Step 3: Cross multiply
142,186.74x = 213,130.26 × 47,391.63 - Step 4: Simplify right side
142,186.74x = 10,100,590,423.72 - Step 5: Solve for x
x = 10,100,590,423.72/142,186.74 - Step 6: Final answer
x = 71,037.50
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1.5x scale
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.