Finding the Fourth Proportional to 151,266.09, 208,729.11 and 87,595.23
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Solution
The fourth proportional to 151,266.09, 208,729.11 and 87,595.23 is: 120,870.94
Step by Step Solution
- Step 1: Write the proportion equation
151,266.09 : 208,729.11 = 87,595.23 : x - Step 2: Convert to fraction form
151,266.09/208,729.11 = 87,595.23/x - Step 3: Cross multiply
151,266.09x = 208,729.11 × 87,595.23 - Step 4: Simplify right side
151,266.09x = 18,283,674,398.15 - Step 5: Solve for x
x = 18,283,674,398.15/151,266.09 - Step 6: Final answer
x = 120,870.94
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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.