Finding the Fourth Proportional to 119,213.95, 164,446.81 and 74,424.19
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Solution
The fourth proportional to 119,213.95, 164,446.81 and 74,424.19 is: 102,662.66
Step by Step Solution
- Step 1: Write the proportion equation
119,213.95 : 164,446.81 = 74,424.19 : x - Step 2: Convert to fraction form
119,213.95/164,446.81 = 74,424.19/x - Step 3: Cross multiply
119,213.95x = 164,446.81 × 74,424.19 - Step 4: Simplify right side
119,213.95x = 12,238,820,632.33 - Step 5: Solve for x
x = 12,238,820,632.33/119,213.95 - Step 6: Final answer
x = 102,662.66
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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.