Finding the Fourth Proportional to 131,335.24, 181,197.66 and 74,732.44
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Solution
The fourth proportional to 131,335.24, 181,197.66 and 74,732.44 is: 103,105.18
Step by Step Solution
- Step 1: Write the proportion equation
131,335.24 : 181,197.66 = 74,732.44 : x - Step 2: Convert to fraction form
131,335.24/181,197.66 = 74,732.44/x - Step 3: Cross multiply
131,335.24x = 181,197.66 × 74,732.44 - Step 4: Simplify right side
131,335.24x = 13,541,343,254.09 - Step 5: Solve for x
x = 13,541,343,254.09/131,335.24 - Step 6: Final answer
x = 103,105.18
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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.