Finding the Fourth Proportional to 177,135.20, 266,112.40 and 121,839.20
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Solution
The fourth proportional to 177,135.20, 266,112.40 and 121,839.20 is: 183,040.54
Step by Step Solution
- Step 1: Write the proportion equation
177,135.20 : 266,112.40 = 121,839.20 : x - Step 2: Convert to fraction form
177,135.20/266,112.40 = 121,839.20/x - Step 3: Cross multiply
177,135.20x = 266,112.40 × 121,839.20 - Step 4: Simplify right side
177,135.20x = 32,422,921,926.08 - Step 5: Solve for x
x = 32,422,921,926.08/177,135.20 - Step 6: Final answer
x = 183,040.54
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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.