Finding the Fourth Proportional to 115,615.16, 159,545.57 and 64,627.99
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Solution
The fourth proportional to 115,615.16, 159,545.57 and 64,627.99 is: 89,184.75
Step by Step Solution
- Step 1: Write the proportion equation
115,615.16 : 159,545.57 = 64,627.99 : x - Step 2: Convert to fraction form
115,615.16/159,545.57 = 64,627.99/x - Step 3: Cross multiply
115,615.16x = 159,545.57 × 64,627.99 - Step 4: Simplify right side
115,615.16x = 10,311,109,677.94 - Step 5: Solve for x
x = 10,311,109,677.94/115,615.16 - Step 6: Final answer
x = 89,184.75
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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.