Finding the Fourth Proportional to 131,171.84, 180,998.88 and 74,576.96
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Solution
The fourth proportional to 131,171.84, 180,998.88 and 74,576.96 is: 102,905.82
Step by Step Solution
- Step 1: Write the proportion equation
131,171.84 : 180,998.88 = 74,576.96 : x - Step 2: Convert to fraction form
131,171.84/180,998.88 = 74,576.96/x - Step 3: Cross multiply
131,171.84x = 180,998.88 × 74,576.96 - Step 4: Simplify right side
131,171.84x = 13,498,346,233.80 - Step 5: Solve for x
x = 13,498,346,233.80/131,171.84 - Step 6: Final answer
x = 102,905.82
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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.