Finding the Fourth Proportional to 131,176.62, 181,022.89 and 74,587.99
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Solution
The fourth proportional to 131,176.62, 181,022.89 and 74,587.99 is: 102,930.95
Step by Step Solution
- Step 1: Write the proportion equation
131,176.62 : 181,022.89 = 74,587.99 : x - Step 2: Convert to fraction form
131,176.62/181,022.89 = 74,587.99/x - Step 3: Cross multiply
131,176.62x = 181,022.89 × 74,587.99 - Step 4: Simplify right side
131,176.62x = 13,502,133,509.09 - Step 5: Solve for x
x = 13,502,133,509.09/131,176.62 - Step 6: Final answer
x = 102,930.95
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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.