Finding the Fourth Proportional to 131,617.36, 181,631.99 and 74,268.84
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Solution
The fourth proportional to 131,617.36, 181,631.99 and 74,268.84 is: 102,491.02
Step by Step Solution
- Step 1: Write the proportion equation
131,617.36 : 181,631.99 = 74,268.84 : x - Step 2: Convert to fraction form
131,617.36/181,631.99 = 74,268.84/x - Step 3: Cross multiply
131,617.36x = 181,631.99 × 74,268.84 - Step 4: Simplify right side
131,617.36x = 13,489,596,708.74 - Step 5: Solve for x
x = 13,489,596,708.74/131,617.36 - Step 6: Final answer
x = 102,491.02
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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.