Finding the Fourth Proportional to 131,579.09, 181,581.09 and 74,221.14
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Solution
The fourth proportional to 131,579.09, 181,581.09 and 74,221.14 is: 102,426.27
Step by Step Solution
- Step 1: Write the proportion equation
131,579.09 : 181,581.09 = 74,221.14 : x - Step 2: Convert to fraction form
131,579.09/181,581.09 = 74,221.14/x - Step 3: Cross multiply
131,579.09x = 181,581.09 × 74,221.14 - Step 4: Simplify right side
131,579.09x = 13,477,155,502.24 - Step 5: Solve for x
x = 13,477,155,502.24/131,579.09 - Step 6: Final answer
x = 102,426.27
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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.