Finding the Fourth Proportional to 115,511.23, 159,395.11 and 64,516.88
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Solution
The fourth proportional to 115,511.23, 159,395.11 and 64,516.88 is: 89,027.49
Step by Step Solution
- Step 1: Write the proportion equation
115,511.23 : 159,395.11 = 64,516.88 : x - Step 2: Convert to fraction form
115,511.23/159,395.11 = 64,516.88/x - Step 3: Cross multiply
115,511.23x = 159,395.11 × 64,516.88 - Step 4: Simplify right side
115,511.23x = 10,283,674,861.87 - Step 5: Solve for x
x = 10,283,674,861.87/115,511.23 - Step 6: Final answer
x = 89,027.49
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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.