Finding the Fourth Proportional to 131,532.84, 181,533.09 and 74,183.94
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Solution
The fourth proportional to 131,532.84, 181,533.09 and 74,183.94 is: 102,383.86
Step by Step Solution
- Step 1: Write the proportion equation
131,532.84 : 181,533.09 = 74,183.94 : x - Step 2: Convert to fraction form
131,532.84/181,533.09 = 74,183.94/x - Step 3: Cross multiply
131,532.84x = 181,533.09 × 74,183.94 - Step 4: Simplify right side
131,532.84x = 13,466,838,948.91 - Step 5: Solve for x
x = 13,466,838,948.91/131,532.84 - Step 6: Final answer
x = 102,383.86
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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.