Finding the Fourth Proportional to 92,437.20, 138,364.20 and 66,193.20
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Solution
The fourth proportional to 92,437.20, 138,364.20 and 66,193.20 is: 99,080.99
Step by Step Solution
- Step 1: Write the proportion equation
92,437.20 : 138,364.20 = 66,193.20 : x - Step 2: Convert to fraction form
92,437.20/138,364.20 = 66,193.20/x - Step 3: Cross multiply
92,437.20x = 138,364.20 × 66,193.20 - Step 4: Simplify right side
92,437.20x = 9,158,769,163.44 - Step 5: Solve for x
x = 9,158,769,163.44/92,437.20 - Step 6: Final answer
x = 99,080.99
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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.