Finding the Fourth Proportional to 143,366.60, 214,790.70 and 126,777.80
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Solution
The fourth proportional to 143,366.60, 214,790.70 and 126,777.80 is: 189,937.49
Step by Step Solution
- Step 1: Write the proportion equation
143,366.60 : 214,790.70 = 126,777.80 : x - Step 2: Convert to fraction form
143,366.60/214,790.70 = 126,777.80/x - Step 3: Cross multiply
143,366.60x = 214,790.70 × 126,777.80 - Step 4: Simplify right side
143,366.60x = 27,230,692,406.46 - Step 5: Solve for x
x = 27,230,692,406.46/143,366.60 - Step 6: Final answer
x = 189,937.49
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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.