Finding the Fourth Proportional to 131,917.95, 182,035.94 and 74,562.17
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Solution
The fourth proportional to 131,917.95, 182,035.94 and 74,562.17 is: 102,889.66
Step by Step Solution
- Step 1: Write the proportion equation
131,917.95 : 182,035.94 = 74,562.17 : x - Step 2: Convert to fraction form
131,917.95/182,035.94 = 74,562.17/x - Step 3: Cross multiply
131,917.95x = 182,035.94 × 74,562.17 - Step 4: Simplify right side
131,917.95x = 13,572,993,421.40 - Step 5: Solve for x
x = 13,572,993,421.40/131,917.95 - Step 6: Final answer
x = 102,889.66
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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.