Finding the Fourth Proportional to 132,731.84, 183,169.86 and 73,115.84
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Solution
The fourth proportional to 132,731.84, 183,169.86 and 73,115.84 is: 100,899.82
Step by Step Solution
- Step 1: Write the proportion equation
132,731.84 : 183,169.86 = 73,115.84 : x - Step 2: Convert to fraction form
132,731.84/183,169.86 = 73,115.84/x - Step 3: Cross multiply
132,731.84x = 183,169.86 × 73,115.84 - Step 4: Simplify right side
132,731.84x = 13,392,618,176.58 - Step 5: Solve for x
x = 13,392,618,176.58/132,731.84 - Step 6: Final answer
x = 100,899.82
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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.