Finding the Fourth Proportional to 115,358.96, 159,195.36 and 65,057.96
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Solution
The fourth proportional to 115,358.96, 159,195.36 and 65,057.96 is: 89,779.98
Step by Step Solution
- Step 1: Write the proportion equation
115,358.96 : 159,195.36 = 65,057.96 : x - Step 2: Convert to fraction form
115,358.96/159,195.36 = 65,057.96/x - Step 3: Cross multiply
115,358.96x = 159,195.36 × 65,057.96 - Step 4: Simplify right side
115,358.96x = 10,356,925,363.07 - Step 5: Solve for x
x = 10,356,925,363.07/115,358.96 - Step 6: Final answer
x = 89,779.98
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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.