Finding the Fourth Proportional to 143,373.60, 214,801.20 and 126,784.80
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Solution
The fourth proportional to 143,373.60, 214,801.20 and 126,784.80 is: 189,947.99
Step by Step Solution
- Step 1: Write the proportion equation
143,373.60 : 214,801.20 = 126,784.80 : x - Step 2: Convert to fraction form
143,373.60/214,801.20 = 126,784.80/x - Step 3: Cross multiply
143,373.60x = 214,801.20 × 126,784.80 - Step 4: Simplify right side
143,373.60x = 27,233,527,181.76 - Step 5: Solve for x
x = 27,233,527,181.76/143,373.60 - Step 6: Final answer
x = 189,947.99
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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.