Finding the Fourth Proportional to 151,647.67, 209,266.05 and 91,206.70
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Solution
The fourth proportional to 151,647.67, 209,266.05 and 91,206.70 is: 125,860.59
Step by Step Solution
- Step 1: Write the proportion equation
151,647.67 : 209,266.05 = 91,206.70 : x - Step 2: Convert to fraction form
151,647.67/209,266.05 = 91,206.70/x - Step 3: Cross multiply
151,647.67x = 209,266.05 × 91,206.70 - Step 4: Simplify right side
151,647.67x = 19,086,465,842.54 - Step 5: Solve for x
x = 19,086,465,842.54/151,647.67 - Step 6: Final answer
x = 125,860.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.