Finding the Fourth Proportional to 159,072.66, 219,511.62 and 87,441.12
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Solution
The fourth proportional to 159,072.66, 219,511.62 and 87,441.12 is: 120,663.99
Step by Step Solution
- Step 1: Write the proportion equation
159,072.66 : 219,511.62 = 87,441.12 : x - Step 2: Convert to fraction form
159,072.66/219,511.62 = 87,441.12/x - Step 3: Cross multiply
159,072.66x = 219,511.62 × 87,441.12 - Step 4: Simplify right side
159,072.66x = 19,194,341,905.81 - Step 5: Solve for x
x = 19,194,341,905.81/159,072.66 - Step 6: Final answer
x = 120,663.99
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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.