Finding the Fourth Proportional to 121,202.21, 181,691.06 and 61,907.10
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Solution
The fourth proportional to 121,202.21, 181,691.06 and 61,907.10 is: 92,803.31
Step by Step Solution
- Step 1: Write the proportion equation
121,202.21 : 181,691.06 = 61,907.10 : x - Step 2: Convert to fraction form
121,202.21/181,691.06 = 61,907.10/x - Step 3: Cross multiply
121,202.21x = 181,691.06 × 61,907.10 - Step 4: Simplify right side
121,202.21x = 11,247,966,310.99 - Step 5: Solve for x
x = 11,247,966,310.99/121,202.21 - Step 6: Final answer
x = 92,803.31
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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.