Finding the Fourth Proportional to 121,416.20, 182,027.10 and 51,237.80
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Solution
The fourth proportional to 121,416.20, 182,027.10 and 51,237.80 is: 76,815.68
Step by Step Solution
- Step 1: Write the proportion equation
121,416.20 : 182,027.10 = 51,237.80 : x - Step 2: Convert to fraction form
121,416.20/182,027.10 = 51,237.80/x - Step 3: Cross multiply
121,416.20x = 182,027.10 × 51,237.80 - Step 4: Simplify right side
121,416.20x = 9,326,668,144.38 - Step 5: Solve for x
x = 9,326,668,144.38/121,416.20 - Step 6: Final answer
x = 76,815.68
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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.