Finding the Fourth Proportional to 132,425.21, 198,670.64 and 61,398.74
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Solution
The fourth proportional to 132,425.21, 198,670.64 and 61,398.74 is: 92,113.32
Step by Step Solution
- Step 1: Write the proportion equation
132,425.21 : 198,670.64 = 61,398.74 : x - Step 2: Convert to fraction form
132,425.21/198,670.64 = 61,398.74/x - Step 3: Cross multiply
132,425.21x = 198,670.64 × 61,398.74 - Step 4: Simplify right side
132,425.21x = 12,198,125,670.65 - Step 5: Solve for x
x = 12,198,125,670.65/132,425.21 - Step 6: Final answer
x = 92,113.32
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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.