Finding the Fourth Proportional to 142,134.20, 213,201.30 and 124,623.80
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Solution
The fourth proportional to 142,134.20, 213,201.30 and 124,623.80 is: 186,935.70
Step by Step Solution
- Step 1: Write the proportion equation
142,134.20 : 213,201.30 = 124,623.80 : x - Step 2: Convert to fraction form
142,134.20/213,201.30 = 124,623.80/x - Step 3: Cross multiply
142,134.20x = 213,201.30 × 124,623.80 - Step 4: Simplify right side
142,134.20x = 26,569,956,170.94 - Step 5: Solve for x
x = 26,569,956,170.94/142,134.20 - Step 6: Final answer
x = 186,935.70
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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.